Here are 67 books that Ancillary Mercy fans have personally recommended if you like Ancillary Mercy. Shepherd is a community of 12,000+ authors and super readers sharing their favorite books with the world.

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Book cover of Dawn

Joan Slonczewski Author Of Brain Plague

From my list on microbes and alien minds.

Why am I passionate about this?

I’ve spent my career with my students exploring microbes in all kinds of worlds, from cosmetics on our skin to the glaciers of Antarctica. In Antarctica, I discovered bizarre bacteria that form giant red blobs; we call them the “red nose” life form. In our lab at Kenyon College, we isolated new microbes from a student’s beauty blenders. These experiences, and those of the books I list here, inspire the microbial adventures of my science fiction. If microbes could talk, how would they deal with us? Find out in my novel, Brain Plague. And I hope you enjoy all the microbial tales on this list!

Joan's book list on microbes and alien minds

Joan Slonczewski Why Joan loves this book

What if reproduction required people to mate with another species—creatures more alien than bacteria?

In this book, Lilith Iyapo awakes after a nuclear war to find her alien saviors expect just that. The alien Oankali are organisms whose cells modify their own genes to perfection. But their genes run short of diversity, until they are compelled to share genes with a population as alien to them as—humans.

This disturbing novel asks us how much of our own humanity would we trade for survival? Would I welcome a half-alien child if its monstrous traits cured cancer? A science fiction novel that made me imagine the biological dilemmas of gene exchange.

By Octavia E. Butler ,

Why should I read it?

11 authors picked Dawn as one of their favorite books, and they share why you should read it.

What is this book about?

'One of the most significant literary artists of the twentieth century' JUNOT DIAZ

'Octavia Butler was playing out our very real possibilities as humans. I think she can help each of us to do the same' GLORIA STEINEM

One woman is called upon to reconstruct humanity in this hopeful, thought-provoking novel by the bestselling, award-winning author. For readers of Margaret Atwood, Toni Morrison and Ursula K. Le Guin.

When Lilith lyapo wakes in a small white room with no doors or windows, she remembers a devastating war, and a husband and child long lost to her.

She finds herself living…


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Book cover of Aggressor

Aggressor by FX Holden,

It is April 1st, 2038. Day 60 of China's blockade of the rebel island of Taiwan.

The US government has agreed to provide Taiwan with a weapons system so advanced that it can disrupt the balance of power in the region. But what pilot would be crazy enough to run…

Book cover of Ninefox Gambit

Robyn Bennis Author Of The Guns Above

From my list on great twist on spaceships.

Why am I passionate about this?

I have wanted to live on a spaceship since I was eight years old, watching reruns of Star Trek on the local UHF channel. At eight, I couldn’t have told you why. The Enterprise, by the twin miracles of sci-fi tech and TV budget, has the same gravity, air, and people (mostly) we have right here on Earth. Later, I came to understand the appeal: on the Enterprise, the only true enemy is space itself, unfeeling and impersonal in its hostility. The only hate in space is what we bring with us, and the silent, empty gulfs between worlds remind us that we can choose to leave it behind. 

Robyn's book list on great twist on spaceships

Robyn Bennis Why Robyn loves this book

Reading the first couple of chapters of this book is like being thrown into the deep end of a pool and asked not just to swim but to do some calculus homework while you’re at it. The setting just doesn’t seem to make any sense, physically or morally. But I kept treading water until this book had a grip on me that wouldn’t let go. By the time the concept of “Calendrical Heresy” came up, I couldn’t put it down.

In this book, spaceships (and their horrifying, inhumane weapons) run on forces that depend on the calendar. Change the calendar and you change the rules of reality itself. This unique bit of worldbuilding lays the foundations for a gritty, unwavering exploration of personal identity under the heels of oppression, and holy crap, is it a wild, profound journey.

By Yoon Ha Lee ,

Why should I read it?

4 authors picked Ninefox Gambit as one of their favorite books, and they share why you should read it.

What is this book about?

New York Times Best-Selling Author - Nominated for the 2019 Hugo Award for Best Series - Winner of the 2016 Locus Award - Nominated for the Hugo, Nebula and Arthur C. Clarke Awards

When Captain Kel Cheris of the hexarchate is disgraced for her unconventional tactics, Kel Command gives her a chance to redeem herself, by retaking the Fortress of Scattered Needles from the heretics. Cheris's career isn't the only thing at stake: if the fortress falls, the hexarchate itself might be next.

Cheris's best hope is to ally with the undead tactician Shuos Jedao. The good news is that…


Book cover of The Girl With All the Gifts

Dee J. Holmes Author Of Three Days In Undead Shoes

From my list on flipping the zombie apocalypse script.

Why am I passionate about this?

I’m a Canadian author who thought too much about death as a child. But I was also a happy little goblin who grew up watching Disney fairytales and Transformers cartoons—all of which shine in my blend of twisting horror meeting tales of love and friendship. My degree in History helps me add depth and a political thriller edge. Bands of brothers, found family, and loyal hounds round out my books. I adore being scared, but I also want my characters to find happiness. So I’ll put you on the edge of your seat and have you jumping at the next twist—but don’t worry, the dog always lives.

Dee's book list on flipping the zombie apocalypse script

Dee J. Holmes Why Dee loves this book

I love this book’s original take on the “spore” or “fungal” zombie outbreak. It feels like the author took The Last Of Us (which I also adore) and flipped the story on its head. Melanie is this unique character, at once the snarky, hilarious child of the piece and its terrifying monster.

She’s the threat, battlefield, and hope—and I find that combination so compelling. While it’s a grim, often bleak tale set in a decimated UK, this thread of unexpected hope and unusual connections kept me hooked. This story might not give me the future I wanted at the start of the story, but it offers a different vision with its own version of hope for humanity, and because of that, it has a special place on my shelf.

By M.R. Carey ,

Why should I read it?

15 authors picked The Girl With All the Gifts as one of their favorite books, and they share why you should read it.

What is this book about?

'ORIGINAL, THRILLING AND POWERFUL' - Guardian
'HAUNTING, HEARTHBREAKING' - Vogue
The phenomenal million-copy bestseller that is also a BAFTA Award-nominated movie

NOT EVERY GIFT IS A BLESSING

Every morning, Melanie waits in her cell to be collected for class. When they come for her, Sergeant Parks keeps his gun pointing at her while two of his people strap her into the wheelchair. She thinks they don't like her. She jokes that she won't bite. But they don't laugh.

Melanie is a very special girl.

Emotionally charged and gripping from beginning to end, THE GIRL WITH ALL THE GIFTS is the…


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Book cover of Trusting Her Duke

Trusting Her Duke by Arietta Richmond,

A Duke with rigid opinions, a Lady whose beliefs conflict with his, a long disputed parcel of land, a conniving neighbour, a desperate collaboration, a failure of trust, a love found despite it all.

Alexander Cavendish, Duke of Ravensworth, returned from war to find that his father and brother had…

Book cover of The Last Descendant

S. A. Gibson Author Of In the Horde's Way

From my list on where different cultures mix in a fantastical world.

Why am I passionate about this?

I am fascinated by how people communicate. I enjoy when different cultures clash and cooperate. Coming from another country and growing up in California exposed me to my first taste of different groups. Traveling around the country and the world has allowed me to see the vast variety of people and I continue to wonder how we can get along together.

S. A.'s book list on where different cultures mix in a fantastical world

S. A. Gibson Why S. A. loves this book

Rie is a kickass heroine who must survive in a world where humans like her don’t fit in and are not respected. The story mixes creatures of different types, high elves, dark elves, pixies, goblins, imps, and more. Handles the problem of an inferior trying to deal with more powerful friends and enemies. Great story.

By Megan Haskell ,

Why should I read it?

1 author picked The Last Descendant as one of their favorite books, and they share why you should read it.

What is this book about?

A woman torn between honor and survival…

Rie is only human. The high elves have made that very clear. Even training as an elite fighter isn’t enough to earn the respect she craves. Her only allies are the fierce carnivorous pixies who travel by her side, yet still she clings to the hope of one day earning her place in the Upper Realm.


When she's attacked by assassins from the enemy Shadow Realm, Rie's martial prowess keeps her alive...and frames her as a traitor. Facing execution at the hand of a merciless king, Rie must forsake her oaths and flee…


Book cover of Jade

S. A. Gibson Author Of In the Horde's Way

From my list on where different cultures mix in a fantastical world.

Why am I passionate about this?

I am fascinated by how people communicate. I enjoy when different cultures clash and cooperate. Coming from another country and growing up in California exposed me to my first taste of different groups. Traveling around the country and the world has allowed me to see the vast variety of people and I continue to wonder how we can get along together.

S. A.'s book list on where different cultures mix in a fantastical world

S. A. Gibson Why S. A. loves this book

Jade is a being of mysterious power who has traits of shifter, witch, fae, and others. She serves the police force in Winston, in a world in which supernatural beings are everywhere, but are discriminated against. She must solve a mystery and fight to protect herself and her friends. I enjoyed this story. I think you will enjoy it if you like fantasy.

By Rose Montague ,

Why should I read it?

1 author picked Jade as one of their favorite books, and they share why you should read it.

What is this book about?

Meet Jade Smith, a magical mutt with a mission. A detective partnered with a shifter named Rolfe, she’s on the case to solve a slew of murders: Vamps are killing humans, and nobody knows why. When London Jane, the most powerful vamp in town, is implicated in the murders, Jade knows something isn’t right. Together with Jill, the Winter Queen of Faerie, Jade and Jane take their investigation underground. On the run, with nowhere to hide, they uncover a secret that could destroy Faerie, as well as the human realm. Will Jade stop the killer in time? Or will she…


Book cover of Umbrae

S. A. Gibson Author Of In the Horde's Way

From my list on where different cultures mix in a fantastical world.

Why am I passionate about this?

I am fascinated by how people communicate. I enjoy when different cultures clash and cooperate. Coming from another country and growing up in California exposed me to my first taste of different groups. Traveling around the country and the world has allowed me to see the vast variety of people and I continue to wonder how we can get along together.

S. A.'s book list on where different cultures mix in a fantastical world

S. A. Gibson Why S. A. loves this book

Miri, our protagonist explores her strengths and weaknesses. She has lost her dearest friends, and journeys to Israel, in part to follow the trail of her lost love.

The story has several intriguing side plots. We learn the origin of werecats. We follow Miri's family members as they get caught up in the Nazi persecution of Jews in World War II. We see inside a conservative community in Israel. And, the world of Umbrae is shown to be a wondrous and scary place. I enjoyed seeing the characters, good and evil. Finny, the cat, is fun, devoted, and willing to travel around the world and into Umbrae to help her friends. 

This is another strong entry into the story arc of the P.A.W.S. series.

By Debbie Manber Kupfer ,

Why should I read it?

1 author picked Umbrae as one of their favorite books, and they share why you should read it.

What is this book about?

Step into the Shadows of Umbrae ...

Miri’s world at P.A.W.S. in St. Louis is falling apart. First, Danny is accused of stealing her opapa’s charm. But before he can defend himself, he mysteriously disappears. Miri seeks Josh for help and advice, but he too has gone missing.

Then Lilith has a vision – Miri dragged away by wolves. Miri needs answers, answers that she feels sure are hidden in the blank pages of the book of Argentum.

With the help of Lilith, she travels to the ancient city of Safed. There, with the aid of a mystical rabbi and…


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Book cover of The Duke's Christmas Redemption

The Duke's Christmas Redemption by Arietta Richmond,

A Duke who has rejected love, a Lady who dreams of a love match, an arranged marriage, a house full of secrets, a most unneighborly neighbor, a plot to destroy reputations, an unexpected love that redeems it all.

Lady Charlotte Wyndham, given in an arranged marriage to a man she…

Book cover of Planetfall

Andrew Sweet Author Of Southern Highlands: Obi of Mars

From my list on sci-fi featuring world-changing female badasses.

Why am I passionate about this?

I’ve always loved science fiction. My father was an Asimov junkie, and our house was packed with science fiction novels and stories from Azimov to Heinlein to Wyndham and Wilhelm. I began writing science fiction in high school, yet only recently published my first 4 novels (one of which won a Bookfest award). I hold a bachelor’s degree in computer science (bioinformatics), and I stay on top of science to inform my writing. It’s through this background that I select novels, seeking out new tropes and ideas in technological advancement. Each of these novels I mention exceeded my expectations and then some. Pick one up today—you won’t be disappointed!

Andrew's book list on sci-fi featuring world-changing female badasses

Andrew Sweet Why Andrew loves this book

Emma Watson firmly places herself in the mind of the protagonist Renata Ghali. Through this semi-reliable narrator, we learn that in this perfect planned society, a lot is happening beneath the still surface. This novel unfolds slowly, layering the pieces on scene by scene until something startling (which I don’t want to ruin for you) happens to the main character. Often in sci-fi, you see the character make some monumental decision, and then they win, and everything’s happy. This book doesn’t do that. Instead, it looks at the very real-feeling impact of said “monumental decision” on those who made it. And despite all of the character depth, Emma Watson manages to deliver a juicy, thick alien world that will leave you salivating for more! 

By Emma Newman ,

Why should I read it?

2 authors picked Planetfall as one of their favorite books, and they share why you should read it.

What is this book about?

From Emma Newman, the award-nominated author of Between Two Thorns, comes a novel of how one secret withheld to protect humanity's future might be its undoing...

Renata Ghali believed in Lee Suh-Mi's vision of a world far beyond Earth, calling to humanity. A planet promising to reveal the truth about our place in the cosmos, untainted by overpopulation, pollution, and war. Ren believed in that vision enough to give up everything to follow Suh-Mi into the unknown.

More than twenty-two years have passed since Ren and the rest of the faithful braved the starry abyss and established a colony at…


Book cover of Velocity Weapon

Robyn Bennis Author Of The Guns Above

From my list on great twist on spaceships.

Why am I passionate about this?

I have wanted to live on a spaceship since I was eight years old, watching reruns of Star Trek on the local UHF channel. At eight, I couldn’t have told you why. The Enterprise, by the twin miracles of sci-fi tech and TV budget, has the same gravity, air, and people (mostly) we have right here on Earth. Later, I came to understand the appeal: on the Enterprise, the only true enemy is space itself, unfeeling and impersonal in its hostility. The only hate in space is what we bring with us, and the silent, empty gulfs between worlds remind us that we can choose to leave it behind. 

Robyn's book list on great twist on spaceships

Robyn Bennis Why Robyn loves this book

AI has been coming for my day job for a while now, so I was honestly conflicted when I heard that the talented Megan E. O'Keefe wrote a book about a rogue machine intelligence controlling a deserted spaceship. However, the first few chapters of this spooky, thoughtful, riveting novel made me think again. After finishing… well, I don’t want to spoil it, but let’s just say the themes rang very, very true to someone on the sharp end of the AI revolution.

Storytelling like this embodies the best of science fiction: using a futuristic setting to explore the issues most relevant to the present. That’s why I’m a science fiction fan, and it’s why I adore this book.

By Megan E. O'Keefe ,

Why should I read it?

3 authors picked Velocity Weapon as one of their favorite books, and they share why you should read it.

What is this book about?

NOMINATED FOR THE PHILIP K. DICK AWARD FOR BEST NOVEL * Dazzling space battles, intergalactic politics, and rogue AI collide in Velocity Weapon, the first book in this epic space opera trilogy by award-winning author Megan O'Keefe.
Sanda and Biran Greeve were siblings destined for greatness. A high-flying sergeant, Sanda has the skills to take down any enemy combatant. Biran is a savvy politician who aims to use his new political position to prevent conflict from escalating to total destruction.
However, on a routine maneuver, Sanda loses consciousness when her gunship is blown out of the sky. Instead of finding…


Book cover of Dune Messiah

D.P. Davidson Author Of Push

From my list on books overshadowed by the author's better known work.

Why am I passionate about this?

Because I love to see how an author progresses in their storytelling abilities. Whether they continue with the same characters or move on to new worlds and new storylines, the art of writing changes as the author becomes more comfortable with their craft. I love knowing that the mind that created Dorian Grey and recorded his story also created Lord Saville. Even though they came from the same mind, they are their own entities, and the author was willing to give life to both. I love when an author is committed to the art of storytelling and not just of genre.  

D.P.'s book list on books overshadowed by the author's better known work

D.P. Davidson Why D.P. loves this book

I love the entire Dune series, but most readers don't get past the first book. The characters retained the growth and development from the first book and we see how they continue to deal with their differing struggles, like Chani who desperately wants children, while Paul knows that her desire will bring her death. Unable to marry Chani, Paul has taken a wife, in name only, but the woman loves him and desperately wants to be loved by him. I saw myself in these two women who wanted such simple things, but for reasons out of their control, were not able to have them. It made me realize that sometimes we have to let go of what we want and just be grateful for what we have, for as long as we may have it.

By Frank Herbert ,

Why should I read it?

4 authors picked Dune Messiah as one of their favorite books, and they share why you should read it.

What is this book about?

The extraordinary sequel to Dune, the greatest science fiction novel of all time.

Twelve years after his victory over House Harkonnen, Paul Atreides rules as emperor from the desert planet Arrakis - but his victory has had profound consequences. War has been brought to the entire known universe, and billions have already perished. Despite having become the most powerful emperor known to history, Paul is powerless to bring an end to the fighting.

While former allies conspire to dethrone Paul and even his own consort acts against him, Paul accepts a gift from the Tleilaxu, a guild of genetic manipulators,…


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Book cover of Old Man Country

Old Man Country by Thomas R. Cole,

This book follows the journey of a writer in search of wisdom as he narrates encounters with 12 distinguished American men over 80, including Paul Volcker, the former head of the Federal Reserve, and Denton Cooley, the world’s most famous heart surgeon.

In these and other intimate conversations, the book…

Book cover of The House at the End of the World

Evan Purcell Author Of Followed by Fear

From my list on women on the run.

Why am I passionate about this?

I’ve written an equal amount of horror and romance, including books, podcasts, and screenplays. I love both genres equally, but I’m most drawn to stories that strike a nice balance between the two. Danger makes the romance less cheesy, and romance gives the thriller side more meaning. As an ESL teacher who has worked everywhere, from Bhutan to Zanzibar, I also love discovering new places. Some of my favorite books take their characters to new locations, forcing them to discover the hidden dangers and pleasant surprises that every place has to offer.

Evan's book list on women on the run

Evan Purcell Why Evan loves this book

As always, Dean Koontz uses short, propulsive chapters and tons of dangling questions to make his long novels feel short.

This book is definitely the most exciting of his more recent work, focusing on a woman on the run from a mysterious, tragic past who takes refuge on a tiny island with just as many secrets as she has.

I love how Koontz raises the stakes with each short chapter, withholding answers until he slaps you across the face with them. 

By Dean Koontz ,

Why should I read it?

4 authors picked The House at the End of the World as one of their favorite books, and they share why you should read it.

What is this book about?

Soon no one on Earth will have a place to hide in this novel about fears known and unknown by #1 New York Times bestselling master of suspense Dean Koontz.

In retreat from a devastating loss and crushing injustice, Katie lives alone in a fortresslike stone house on Jacob's Ladder island. Once a rising star in the art world, she finds refuge in her painting.

The neighboring island of Ringrock houses a secret: a government research facility. And now two agents have arrived on Jacob's Ladder in search of someone-or something-they refuse to identify. Although an air of menace hangs…


Book cover of Dawn
Book cover of Ninefox Gambit
Book cover of The Girl With All the Gifts

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Interested in extraterrestrial life, space horror, and war?

Space Horror 31 books
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