Fox Book Reviews

                                    K0-7M0 has never had a name. Or anything you could call a life, for that matter. She lives in the humans' research facilities, all alone, until a new animal comes in. He's a dog, talkative, and very whiny. But Kozmo, as he named her, and the new dog help each other escape.  In the not-so-wonderful world outside the facility, Kozmo meets a bunch of hybrids like her. Their leader, Castor, a feisty eagle-dog. But within the blink of an eye, they're being chased. So Kozmo has to do something she's never dreamed of doing before: trust the others. 

  Castor, a street dog living in a dystopian world, lives in a pack with his brother, Runt. Together they survive the Humans' crusherslushers and hunt enough food to survive. But when Castor gets captured by the Humans for a gladiator-like game called the Unnaturals, he's turned into an eagle-dog. And soon, as he barely lives through the match-ups he's put against with other mutants, Castor knows he'll soon have to defeat the Invincible.  And Castor knows he  can't defeat the Invincible.  But he and his friends can.