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Cain's Blood: A Novel (Project Cain)

3.6  ·  Rating Details ·  585 Ratings  ·  133 Reviews
When clones of infamous serial killers escape from a secret government facility, it’s up to a former Army Ranger to stop them…with the help of a teenage killer clone.

The DNA of the world’s most notorious serial killers—including Ted Bundy, The Son of Sam, and The Boston Strangler—has been cloned by the US Department of Defe
Paperback, 352 pages
Published September 2nd 2014 by Touchstone (first published September 3rd 2013)
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Liviania They both take place during the same time period. Cain's Blood is an adult thriller and Project Cain is a YA thriller, set through the eyes of one of…moreThey both take place during the same time period. Cain's Blood is an adult thriller and Project Cain is a YA thriller, set through the eyes of one of the characters in Cain's Blood. They're companion novels.(less)
Ashley This book is from Castillo's point of view. It's very interesting to reread the story form his POV. You learn new information about the story and get…moreThis book is from Castillo's point of view. It's very interesting to reread the story form his POV. You learn new information about the story and get a totally new perspective to the story. I highly recommend reading this one. (less)
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Community Reviews

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Patrick Nichol
Nov 18, 2013 Patrick Nichol rated it really liked it  ·  review of another edition
Cain's Blood, the twisted new novel by Geoffrey Girard, is the literary equivalent of an Eli Roth torture-porn bloodbath.
Shawn Castillo, an ex-Special Forces Captain turned mercenary, is investigating a horrific mass-murder at a secret laboratory/ private school.
The victims were sodomized, raped and gutted - apparently by students of the school. The offices and classrooms are awash in blood as Castillo is briefed on his mission.
He's been hired to track down dozens of boys who are clones of histo
Feb 10, 2016 Jenniferxoxo rated it it was amazing  ·  review of another edition
Dieses Buch war sowas von unglaublich gut!! Absolut Leseempfehlung. Die Thematik ist einfach so komplex und so absurd, die Spannung hält von Beginn an bis zum Schluss. Man fühlt einfach so mit. Ich hatte so oft Gänsehaut und mir ist es kalt den Rücken runter gelaufen weil das was passiert ist einfach nur unvorstellbar war. Und dann das Ende bzw das letzte 1/4 da haut er nochmal richtig rein. Einfach ein tolles Buch!!
Jason Sizemore
Aug 25, 2013 Jason Sizemore rated it it was amazing  ·  review of another edition
I'm giving this one a 5/5 rating. While not a perfect book, it is one of the most engaging reads of the year and contains some nice moral ambiguities and a realistic, flawed protagonist.


Castillo is an ex-Special Ops member who spent time in Iraq, Afghanistan, and Iran. He's seen and done some bad shit. Even though he's still struggling with serious PTSD, he is tasked by his ex-commander to help track down a group of vicious escaped serial killer clones and their spiritual leader, t
Jennifer McGowan
Finally read the full version of this book in its KILLER flip-ARC format. As a companion novel to PROJECT CAIN it sets the stage in a traditional thriller format that is both fast-paced and really, really (really) dark. Probably the best summary of the book was already shared by someone well-versed with thrillers:

“I'm betting the name Michael Crichton will come up quite a bit as people talk about Geoffrey Girard's deeply-twisted debut, CAIN'S BLOOD. And with good reason: Girard appears to have s
Dec 12, 2013 Alejandra rated it it was amazing  ·  review of another edition
Holy cow is this book intense or what?! It had been a while since a book got me scared the way Cain's Blood did. Needless to say I loved it! It's a mix between Michael Crichton and John Ajvide Lindqvist. In Cain's Blood, a bunch of scientists working for government development and research come across a way of cloning the worst serial killers the world has seen. Now, several of them have been successfully cloned; like Jeffrey Dahmer, Ted Bundy, Albert Fish and David Berkowitz among others. When ...more
Scott Payne
Feb 26, 2015 Scott Payne rated it did not like it  ·  review of another edition
"I'm one of the few people you'll meet who's written more books than they've read." -Garth Marenghi

This quote is almost certainly true of Geoffrey Girard
Hal Bodner
"Cain's Blood" is a fascinating first novel about genetic manipulation by an intriguing new author, Geoffrey Girard. In the current literary environment of "copy cat" novels, Girard manages to do something truly remarkable by creating an entirely innovative and remarkably creative twist on the old "Boys From Brazil" plot line.

I read this book as a possible nominee for the Bram Stoker awards in the "First Novel" category. Oddly, some of the same elements that make Girard's book highly recommendab
Jaclyn Hogan
I was so ready to hate this book. As I've said before, it has one of the stupidest premises ever. The Department of Defense creates clones of infamous serial killers. Because that is a fool proof plan that won't backfire in any way. Ok, sure, they try to justify it by saying things about all the cures for brain diseases that they got from from kids with crazy brain chemistry. I dunno, it never really feels like a viable reason? Like it's an excuse to hold the book together. Really, there are a l ...more
Matthew Baker
Sep 24, 2013 Matthew Baker rated it it was amazing  ·  review of another edition
I always wonder just how many breakthroughs science has experienced because of military need. Granted, most discoveries are always announced in public channels, but I would wager many of them came as a side-effect or result of military experimentation. Geoffrey Girard’s latest book, CAIN’S BLOOD, roots around in this very idealism. But unfortunately for the general population within the book, the breakthrough results of this military experiment are hazardous to the public’s health.

The concept o
Sep 05, 2013 Teri rated it it was amazing  ·  review of another edition
Cain’s Blood is dark, intense, and gory at times – if none of that bothers you, then you’re in for a gripping and riveting read.

When I first read this book description, it completely blew me away – a deeply disturbing, but profound concept, cloning serial killers and using them as weapons. The government also experiments on numerous clones, altering their environments, and the concept of nature vs. nurture figures prominently in this story, along with genetic predisposition.

Castillo is wonderful
Sep 26, 2013 Betty rated it really liked it  ·  review of another edition
Girard opens his book telling us about Mendel (the father of genetics), moving on to the more recent science of genetics, study of DNAs and cloning. I would have liked biology better if Girard had been my professor.

Girard makes three chilling statements even before his story begins:
Scientists isolated DNA factors. "Once isolated, analyzed each factor to understand how it really worked. Once understood, explored how to modify."
The scientist who led the team that cloned Dolly the Sheep, said in
May 29, 2014 Elisa rated it really liked it  ·  review of another edition
It sounds like a joke; a retired military guy with PTSD and a clone of Jeffrey Dahmer track down a bunch of murdering clones. Somehow, from a ridiculous premise, Cain's Blood turns into an edge-of-your-seat thriller about evil and a debate about nature vs. nurture. A biotech company funded by the US Government has secretly cloned some of the most infamous serial killers in history, Ted Bundy, John Wayne Macy, Dahmer, the Son of Sam... you get the picture. When some of these clones escape, it is ...more
Melissa Landers
Sep 15, 2013 Melissa Landers rated it it was amazing  ·  review of another edition
Geoffrey is a local author acquaintance of mine, and I bought CAIN'S BLOOD at his launch party, figuring it would be a nice change of pace from the romance and YA titles I usually pick up.

Oh, man. It was certainly that.

While reading, I can't count the number of times I cringed and thought, "Damn, Geoffrey. This is some seriously twisted, sick-ass sh!t," and yet I couldn't stop turning the pages. Not sure what that says about me. Anyway, I cared about the protagonists, Jeff & Castillo, and th
Paige Horst
Jul 01, 2015 Paige Horst rated it did not like it  ·  review of another edition
Shelves: yal
Couldn't get past the first chapter's lavish attention to gruesome torture-murder scenes. It didn't help that I apparently mistook this book for the companion YA novel Project Cain. It's been a long time since I noped out of a book so fast. It wasn't the violence, necessarily, it was the author's lovingly detailed descriptions of the dead victims and the crime scenes that made me close the book. I kind of wish I had a physical copy so I could burn the thing. I generally have a high tolerance in ...more
Jun 09, 2014 buchtrunken rated it it was amazing  ·  review of another edition
Was passiert, wenn Dolly nur der Anfang der Klon-Geschichte gewesen ist?
Was, wenn Wissenschaftler schon längst den Versuch gewagt haben, Grenzen überschritten und Menschen geklont haben?
Und was ist, wenn diese Klone von den grausamsten, brutalsten und gefährlichsten Menschen abstammen, die man sich vorstellen kann: Serienkillern?

Was ist stärker: Umwelteinflüsse oder Genetik?
Diese Frage stellt sich auch in Geoffrey Girards Thriller "Verdorbenes Blut" nicht nur dem Leser, sondern auch dem Hauptakt
Jan 17, 2015 Meghan rated it it was amazing  ·  review of another edition
In short, one of the most disturbing & well written books I think I've ever read. Seriously unique plot - a terrifying plot. A little horror, sci-fi, and non-fiction all rolled up into a great story with strong characters.

Not for the faint of heart. I had to put this down multiple times and take a break.
Feb 19, 2014 Melyssc rated it really liked it  ·  review of another edition
it's rough. be ready for the gritty content, but still a good read. makes you think.
Dec 11, 2013 Sarah rated it it was amazing  ·  review of another edition
Shelves: adult, horror, ab4t
See my review at School Library Journal Adult Books 4 Teens
Curt Hopkins Hopkins
Feb 02, 2014 Curt Hopkins Hopkins rated it really liked it  ·  review of another edition
Shelves: horror
I never read horror books but I did this one - sort of scifi with its genetics context. It was very good. Very transporting.
Jan 13, 2015 Sammy rated it really liked it  ·  review of another edition
This book actually scared me. Usually only a good scary movie can do that, but this book had me looking over my shoulder while reading it.
Alexandra Hunter
The overall concept was fascinating for me.

Two books released on the same day: one teen fiction and the other just plain old fiction. Both of them focused on a government conspiracy where a pharmaceutical company (the DSTI) clones prolific serial killers to study the rage gene which they lovingly nicknamed the Cain Gene. Jeff Jacobson (the clone of Jeffrey Dahmer) and Castillo (a PTSD suffering, ex military-man with nothing left to lose) travel around the US trying to track down more of these cl
May 27, 2017 Betsy rated it it was ok  ·  review of another edition
Not really my type of book. I'm not a fan of government conspiracy novels or military POV characters and plots. The serial killer aspect intrigued me, and was sort of like Orphan Black with serial killers but was the least explored part of the book.
Danielle LeBlanc

I received an e-copy of this book from the publishers on Edelweiss in exchange for an honest review.

When I received this book, I was so anxious to dive right into it. As I read I just became more and more enamored with the story and the overall general story line. I started discussing it with various family members and describing as much as possible without giving away EVERYTHING (we don't take kindly to spoilers in this household), and actually got quite a few people interested. Sadly, I had
Nicole Mcbride
Oct 28, 2013 Nicole Mcbride rated it really liked it  ·  review of another edition
I found this book listed on a "new arrival" list at my local library and was instantly intrigued. It is an ingenious blend of science and horror that will put you into a state of paranoia about our government's weapons funding. The story places young boys in adoptive homes across the country, but keeps their true identities a secret, even from the boys themselves. Only after one of the lead scientists goes on a killing spree with a group of these boys, it is revealed that they are clones of some ...more
Ray Palen
Debut author Geoffrey Girard has created a novel that seeks to portray evil at many levels. There is, initially, the evil that lies within all of us --- harkening back to the biblical parable about Cain and the birth of true evil. Then there is man-made evil, typically created by modern science.

Imagine if the genetic material of the greatest serial killers of legend could be replicated to the point where clones could be made of them. Albert Fish. Dennis Rader. Ted Bundy. Henry Lee Lucas. David B
Anton Cancre
We, as a people, carry a bizarre obsession with serial and spree killers. My wife has a rather large section of our library dedicated to the subject and she is, by no means, alone in her focus. They seem to be a part of the American mythic collective, where we tend to view them as something significantly more, or less, than human. In our minds, they are monstrous, gigantic beings of grotesque intent and capability instead of broken human beings acting in a horrific fashion. Therefore, it is no s ...more
Victor Gentile
Nov 10, 2013 Victor Gentile rated it it was amazing  ·  review of another edition
Geoffrey Girard in his new book, “Cain’s Blood” published by Touchstone introduces us to Shawn Castillo.

From the back cover: Ted Bundy. The Son of Sam. The Boston Strangler. Albert Fish. Henry Lee Lucas.

The DNA of the world’s most notorious serial killers has been cloned by the U.S. Department of Defense to develop a new breed of bioweapon. Now in Phase Three, the program includes dozens of young men who have no clue as to their evil heritage. Playing a twisted game of nature vs. nurture, scien
Ian Wood
My review for this novel is on my blog. This is a brief summary of that review.

I rated this novel warty!

Based on "CAIN XP11", which according to wikipedia ran as four installments in a publication called Apex Digest in 2007, Project Cain (which I've also reviewed) is a YA novel set in the not-too-distant future and told in first-person PoV by a sixteen-year-old kid. It's paired with this companion novel, "Cain's Blood" which is ostensibly a more mature story about the same subject, told in third
Cain's Blood by Geoffrey Girard is a book about scientists coming together and making clones of the most notorious serial killers. The Scientists took the DNA of Ted Bundy, The Sons of Sam, The Boston strangler, Albert Fish, Henry Lee Lucas and put they DNA in little boys. The boys where set free by the scientists by accident, it's a program that a bunch of boys who doesn't know their heritage but it's a evil heritage. Shawn Castillo is a special ops agent that is on a mission to get the dangero ...more
Chrissy (The Every Free Chance Reader)
Did I enjoy this book: I was asked this by some family members. My response: “I hate it. But I love it. I don’t want to read it. But I can’t not read it.” How’s that for an answer? I read every free chance I had, so long as it was during the day. I couldn’t read this book at night … at least, not at night by myself. If there were people around, then I was able to read a bit of it.

Cain’s Blood was well-written and had me hooked after the first gruesome chapter. As I said above, this book is not s
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Geoffrey Girard writes thrillers, historicals, and dark speculative fiction. Simon and Schuster published two Girard novels simultaneously in 2013: CAIN'S BLOOD, a techno thriller, and PROJECT CAIN, a companion novel for teen/YA readers which was nominated for a Bram Stoker award for "Superior Achievement in a Young Adult Novel."

Girard's short fiction has appeared in several best-selling anthologi
More about Geoffrey Girard...

Other Books in the Series

Project Cain (2 books)
  • Project Cain

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