There are 9 books in the The Final Formula Series series. The newest book is The Fifth Essence which came out in 2017.

To a master alchemist like Addie, impossible is just another word for challenge. When a fiery explosion destroys the Alchemica, the premier alchemy institute in the United States, she’s left with nothing. No home, no colleagues, and no memory. Learning what happened seems impossible, but she still has one strength,…
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2
The Element of Death

Book cover of The Element of Death
Betrayed by the first woman he ever loved, James lashes out at Rowan, the man who won her heart. When James nearly kills him, he panics and strands them both far from home, leaving them to take shelter in an abandoned crematorium. But the decaying building isn't unoccupied. When a…

3
The Blood Alchemist

Book cover of The Blood Alchemist
Master alchemist Addie Daulton hasn't always done the right thing. To atone for sins from her forgotten past, and earn back the respect of the people she loves, she decides to show the world that alchemy can be used for good. For healing. But she can't do anything without a…

4
The Necromancer's Betrayal

Book cover of The Necromancer's Betrayal
All Elysia wants is a normal life. A life free of magic and her family's expectations. The last thing she wants is to be a practicing necromancer. That changes when Elysia meets a dead man. His presence so close to her home can't be a coincidence. Throw in his polite…

5
The Alchemist's Flame

Book cover of The Alchemist's Flame
Now that the local hospital is using her burn salve, master alchemist Addie Daulton has become a celebrity. The positive press will go a long way in helping her redeem alchemy's reputation, but Addie wishes the media would stop calling her the Flame Lord's alchemist. She doesn't need his sanction…

6
The Heir of Death

Book cover of The Heir of Death
Elysia Mallory has never embraced her magic, not when it comes at the price of her sanity. Her family is cursed with bizarre necromantic gifts that have driven each recipient mad, and she doesn't want to be another dead branch on the family tree. But when Elysia learns that an…

7
The Catalyst of Corruption

Book cover of The Catalyst of Corruption
Addie Daulton wants nothing to do with her dark past as an Alchemica alchemist. Content with her new life surrounded by the people she cares about, she has chosen to live with amnesia rather than face the person she was. She focuses on alchemy's healing properties, helping others and hoping…

8
The Bonds of Blood

Book cover of The Bonds of Blood
Born without a heartbeat or a soul, James Huntsman has never felt part of the mortal world. It's an insecurity his abusive brothers reinforced daily, and with his very existence bound to theirs through the alchemically altered blood they share, James has always been at their mercy. All that changed…

9
The Fifth Essence

Book cover of The Fifth Essence
Addie Daulton has never backed down from a challenge. After all, doing the impossible is what makes her a master alchemist. So when she learns that her best friend, James Huntsman, has been banished from the mortal world, she believes she can get him back. But finding James isn't her…