Regular price: $39.93

Membership details Membership details
  • A 30-day trial plus your first audiobook, free.
  • 1 credit/month after trial – good for any book, any price.
  • Easy exchanges – swap any book you don’t love.
  • Keep your audiobooks, even if you cancel.
  • After your trial, Audible is just $14.95/month.
Select or Add a new payment method

Buy Now with 1 Credit

By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Buy Now for $39.93

Pay using card ending in
By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Add to Library for $0.00

By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Publisher's Summary

“The ancestors are out there…you have to believe me.”
From acclaimed author Scott Sigler—New York Times best-selling creator of Infected and Contagious—comes a tale of genetic experimentation’s worst nightmare come true.
Every five minutes, a transplant candidate dies while waiting for a heart, a liver, a kidney. Imagine a technology that could provide those life-saving transplant organs for a nominal fee...and imagine what a company would do to get a monopoly on that technology.
On a remote island in the Canadian Arctic, P. J. Colding leads a group of geneticists who have discovered this holy grail of medicine. By reverse-engineering the genomes of thousands of mammals, Colding's team has dialed back the evolutionary clock to re-create humankind’s common ancestor. The method? Illegal. The result? A computer-engineered living creature, an animal whose organs can be implanted in any person, and with no chance of transplant rejection.
There's just one problem: these ancestors are not the docile herd animals that Colding's team envisioned. Instead, Colding’s work has given birth to something big, something evil.
With these killer creatures on the prowl, Colding and the woman he loves must fight to survive — even as government agents close in to shut the project down, and the deep-pocketed company backing this research proves to have its own cold-blooded agenda.
As the creators become the prey in the ultimate battle for survival, Scott Sigler takes listeners on the ultimate thrill-ride—and offers a chilling cautionary account of what can happen when hubris, greed, and madness drive scientific experimentation past the brink of reason.
©2010 Scott Sigler (P)2010 Random House
Show More Show Less

Critic Reviews

“A tremendously entertaining horror novel…the premise is thought-provoking; Sigler populates the novel with a lively cast of characters (unlike many thrillers, the heroes are as interesting as the villains), and the action is virtually nonstop—and, at times, quite graphic. If you combined Michael Crichton’s scientific exploration with Matthew Reilly’s lightning-fast pace and colorful characters, you might get something that feels like this book, which, incidentally, would make a great movie.” ( Booklist)
Show More Show Less

Customer Reviews

Most Helpful
4 out of 5 stars
By Donna on 07-27-10

Great book

I love this kind of story. The characters were all well-written and quite interesting, and the story itself was quite interesting with plenty of action and a good dose of science. I agree that it would make a great movie - I'd love to see what the ancestors actually look like!

Read More Hide me

8 of 8 people found this review helpful

4 out of 5 stars
By Michal on 08-16-10

Terrific book, but .......

I originally bought the audible version of this book. I did not care for the author's reading voice. I did not know that he has a podcast with THOUSANDS of fans. I know because I heard from all of them when I originally published a negative review. I decided to READ the book because it kept getting 5 star ratings. The BOOK is terrific. I sat down on the couch and didn't move until I finished it. I highly recommend this book, but check out the authori's reading style before you buy the audible version. He is all over the Internet, so check him out first! I am now a huge fan.

Read More Hide me

24 of 27 people found this review helpful

See all Reviews

Customer Reviews

Most Helpful
5 out of 5 stars
By Amazon Customer on 10-17-13

Scott Sigler = best modern horror writer

What made the experience of listening to Ancestor the most enjoyable?

Scott Sigler narrates his own books which in some writers case would be a bad thing, but scott puts effort into his "performance" every character gets a different voice, all of which are pretty decent actually, his female voices are below the rest but he is fully aware of this and tries his best. Surprisingly it actually makes the book come to life.

What did you like best about this story?

its a blend of Jurassic park( the book) and the film Dog Solders, in other words the story kicks major behind.

Have you listened to any of Scott Sigler’s other performances? How does this one compare?

This is my favorite Scott sigler performance, his later books improve his female voices but this one is the best story

If you made a film of this book, what would be the tag line be?

"On an Island where man plays god,Mankind is about to become an endangered species"

Read More Hide me

2 of 2 people found this review helpful

5 out of 5 stars
By MsRanPan on 12-28-12


I'm Scott Sigler's new biggest fan, it's sci-fi, horror, real life. He's influenced by Stephen King and it shows but he's completely go his own voice and style. I absolutely love it and am eagerly awaiting the next book. I love the fact the author narrates them. The characters are real and likeable, the action is fast paced, it's gripping. The science is sound without getting confusing (for those of us who aren't too clued up). It's great, just buy it! No wait, it's a sequel, just buy everything he has written that you can get your hands on.

Read More Hide me

4 of 5 people found this review helpful

See all Reviews