Symbiont (Parasitology Book 2)

Name: Symbiont (Parasitology Book 2)
Price: 14.99 USD
Availability: InStock
Rating: 4.3 (1108 reviews)
Author: Mira Grant

by Mira Grant

Thriller Science Fiction

4.3 (1,108)

4.3 stars from 1,108 reviews. Top 89% of Thriller books we track.

518 pages~8.6 hr readPublished by Little, Brown Book Group LimitedPublished 2014-01-01

$14.99At peak price

Last checked: May 22, 2026

Price history: Free – $14.99

Full price — consider adding to your watchlist for a better deal.

Price range: Free – $14.99

Buy on Amazon - $14.99

0 readers are tracking this book's price

Fans of these authors will like this...

Robin Cook
Michael Crichton
Blake Crouch

Fans of these books will like this...

Parasite
The Andromeda Strain
Pandemic

Perfect for you if...

You love speculative thrillers where the science feels disturbingly plausible and the stakes keep escalating.
You're hooked on series that don't reset after each book but instead deepen the mystery and raise the stakes.
You appreciate body horror and medical nightmares as much as political intrigue and survival tactics.

Maybe not for you if...

You prefer standalone novels and find it frustrating to jump into book two of a series.
You're squeamish about parasites, medical body modification, or graphic descriptions of infection and disease.
You want traditional heroes and clear moral lines rather than morally ambiguous protagonists making impossible choices.

About this book

Symbiont is the second book in Mira Grant's Parasitology series. SymboGen designed tapeworms intended to eliminate disease and sickness in humanity. However, the implants that were distributed to most of the world's population began attacking their hosts, transforming them into a violent, hungry mass. As uninfected individuals are rounded up for quarantine and panic escalates, Sal and her companions work to understand how the tapeworms control their hosts, determine what the parasites ultimately intend to achieve, and find a way to stop them.

Get the best deal every time

We track price drops, sale patterns, and predict when this book will go on offer next.

Price History

Kindle price over time. Green zones = periods when the book was free.

Free – $14.99

Price has dropped 22 times over the last 6 years. Goes on sale roughly every 90 days. Typically stays discounted for 13 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently around #35K in the Kindle store — a steady mid-list seller. Climbing the charts — 54% improvement recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.3★ from 1,108 reviews

Gaining approximately 4 new reviews per month. Rating has remained stable at 4.3 over the tracking period.

Sale Prediction

Actual Predicted

This book goes on sale roughly every 90 days. Next drop estimated in about 11 weeks. It has gone completely free in the past.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.