Live Wire - Harlan Coben, Orion Books

The inimitable Myron Bolitar is back, and he's about to find out that the ugliest truth is better than the prettiest of lies as a secret from his family's past suddenly emerges. Myron's mysterious, estranged younger brother Brad disapears, only to leave Myron with his son - a teenaged boy that Myron didn't even know existed.