The second book in "The Garrison Series, Mutations follows the life of Garrison as he struggles to understand why God rarely allows His creations to experience moments of greatness throughout their lives, instead of often as he does. As Garrison goes to Harvard as a twelve year old to study biochemistry and cell biology, he realizes he must find a way to control the formula he has flowing through his veins. He wants to control the chemical structure of the formula so no physical mutations take place like it had with all the others. Garrison later attempts to play God by performing experiments on animals, keeping extensive notes on how they mutate as the formula is injected into them. He soon realizes these experiments aren't providing him the answers he seeks, so he begins to experiment on humans. Garrison meets Marci and they fall deeply in love. He quickly realizes he cannot keep his secrets to himself any longer, and tells Marci who and what he is, as well as all about his experiments. Realizing his human trials aren't providing him with the answers he needs, Garrison decides to travel to Europe to meet his biological father, Wolfgang, who invented the formula, hoping he can provide him with more answers. But things go very wrong as his traveling companion, Lewis, is bitten by Wolfgang and begins his own horrible transformation...