Missing a foot left behind during his Army tour in Afghanistan, Tom now lives reluctantly with his mother, who runs a British racing stable. Tensions run high, in part because she is being blackmailed and forced to make her horses lose. She's convinced she has no choice. But now she has a secret weapon: Tom's finely honed military skills. He sets out to discover and defeat this hidden enemy. "Old-fashioned, character-driven, plot-perfect suspense."—Booklist