Pastime (Spenser, #18)

Pastime is a startling game of memory, desire, and danger that forces Spenser to face his own past. Ten years ago, he saved a teenage boy from a father's rage. Now, on the brink of manhood, the boy seeks answers to his mother's sudden disapearance. Spenser is the only man he can turn to.
This time, it's more than a routine search for a missing person--Spenser must search his own soul...