There are 9 books in the Firefly series. The newest book is Aim to Misbehave which came out in 2024.

1
Big Damn Hero

By James Lovegrove , Nancy Holder ,

Book cover of Big Damn Hero
The first original novel from the much-missed Space Western Firefly, produced with Joss Whedon as consulting editor, set in the heart of the series.

A perilous cargo
It should have been a routine job, transporting five crates from the planet of Persephone to a waiting buyer. And Lord knows, Captain…
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2
The Magnificent Nine

Book cover of The Magnificent Nine
The second original novel tying into the critically acclaimed and much-missed Firefly series from creator Joss Whedon. An old flame of Jayne Cobb's, Temperance McCloud, sends a message to Serenity, begging him for help. She lives on the arid, far-flung world of Tethys, and bandits are trying to overrun her…

3
The Ghost Machine

Book cover of The Ghost Machine
The third original novel tying into the critically acclaimed and much-missed Firefly series from creator Joss Whedon.

Some hot property
Mal's crew desperately need another payday, but not desperately enough to transport a Blue Sun flightcase to Badger, no questions asked, when the area is swarming with Alliance spacecraft equally…

4
Generations

Book cover of Generations
The fourth original novel tying into the critically acclaimed and much-missed Firefly series from creator Joss Whedon.

Captain Malcolm Reynolds ends a game of cards on one of the Outer Rim moons as the lucky winner of an old map. Ancient and written in impenetrable symbols, the former owner insists…

5
Life Signs

Book cover of Life Signs
A deadly disease
Months after Inara leaves Serenity, Mal and the crew finally learn the reason for her sudden departure: she is dying of a terminal illness. It is Kiehl s Myeloma, a form of cancer that s supposedly incurable, and Inara has very little time left.

A disreputable scientist…

6
Carnival

Book cover of Carnival
A heist goes badly wrong in a captivatingly original tie-in novel from the award-winning series. Join the crew of the Serenity in this epic race across the universe as they fight and haggle to save Zoe and Book from an impossible ransom.

City of sin

Neapolis: a desert city on…

7
What Makes Us Mighty

Book cover of What Makes Us Mighty
A breakneck adventure for the Serenity crew in the seventh original novel tying into the much-missed Firefly series from creator Joss Whedon.

A simple job
Serenity is bound for the planet Kerry with a hold full of sealed, unidentified cargo for the planet's highest-ranking nobleman. The duke is a surprisingly…

8
Coup de Grâce

Book cover of Coup de Grâce
The Serenity lands on the remote moon of Abel for a lucrative job but becomes embroiled in a young woman's quest for vengeance and a starving frontier town's fight for survival. Join Mal and the gang in this enthralling original tie-in novel from the award-winning series.

The Serenity crew head…

9
Aim to Misbehave

Book cover of Aim to Misbehave

The ninth exhilarating and original Firefly novel tying into the critically acclaimed and fan-beloved series, from creator Joss Whedon, follows Mal, Book and the rest of the crew mounting a madcap heist to untangle themselves from a sinister web of lies on a backwater moon.

Stranded and Broke
It all…