Despite his overwhelming fear of interacting with people, Christopher, a mathematically-gifted, autistic fifteen-year-old boy, decides to investigate the murder of his neighbor's dog and uncovers secret information about his mother.

A journey into one of the most fascinating minds alive today--guided by its owner. Daniel Tammet sees numbers as shapes, colors, and textures, and he can perform extraordinary calculations in his head. He can learn new languages from scratch, in a week. He has savant syndrome, a rare condition that gives him almost unimaginable mental powers. But in one crucial way Daniel is not at all like the Rain Man: he is virtually unique among autistic people...

Christian Wolff is a math savant who works as a freelance accountant for some of the world's most dangerous criminal organizations. With the Treasury Department's Crime Enforcement Division starting to close in, he takes on a legitimate client, a robotics company where an accounting clerk has discovered a discrepency involving millions of dollars. But as Christian uncooks the books and gets closer to the truth, the body count starts to rise.