Sam Graham is a mystery man. But when there are no mysteries to solve, Sam comes up with a plan to find one in this hilarious fourth chapter book in the Sam the Man series from Frances O'Roark Dowell. Sam Graham loves solving mysteries. After successfully solving the mystery of Annabelle's lost sock, Sam decides to make mystery-solving his main hobby (after tending the chickens, of course). He recruits his best friend Gavin and a couple...