Evolution (Hypothesis Series #9)

Evolution (Hypothesis Series #9) by Penny Reid is out now, published November 6, 2025.

See if this book is on Audible (Free Trial)

Evolution (Hypothesis Series #9)
As an Amazon Associate we may earn from qualifying purchases, at no extra cost to you.
Evolution (Hypothesis Series #9) Release Date: November 6, 2025

Published

Sam has to make a decision, and either way she’s going to lose.

Samantha is still reeling from her discovery about Andreas and is questioning everything she thought she knew about her former best friend. Before she can figure out what to do, Sam makes another shocking discovery, this time about what really happened between her father and the Kristiansens over fifteen years ago.

Sam is faced with two impossible decisions.

Unfortunately, no matter what she decides, she’s going to lose.

‘EVOLUTION’ is the final book (book 3) in the ‘Fundamentals of Biology’ trilogy and cannot be read as a standalone. ‘Fundamentals of Biology’ is the third trilogy in a series of trilogies that begins with ‘Elements of Chemistry’ and ‘Laws of Physics.’ You do NOT need to read ‘Elements of Chemistry’ or ‘Laws of Physics’ before reading ‘Fundamentals of Biology.’

Reader Anticipation Rating:
[Average Rating: 0]

Book Club Journal: Reading Log For Adults & Kids Who Love Books!
Check Latest Price
We earn a commission if you make a purchase, at no additional cost to you.

Genre: Romance


Penny Reid

More books from Penny Reid


🎧 While You Wait for Evolution (Hypothesis Series #9)

Prefer audiobooks?

Check Audible to see if Evolution (Hypothesis Series #9) is available to listen to.

Start a free trial and get your first audiobook free.

✔ Listen while commuting or relaxing
✔ Your first audiobook is free with the trial
✔ Cancel anytime

Start Audible Free Trial

Book Club Journal: Reading Log For Adults & Kids Who Love Books!
Check Latest Price
We earn a commission if you make a purchase, at no additional cost to you.