A Maiden's Grave - Jeffery Deaver

A bus full of children is taken hostage in this "screaming hit" (The New York Times Book Review) from the bestselling author of The Never Game and The Bone Collector.
Along a windswept Kansas road, eight vulnerable girls and their helpless teachers are forced off a school bus and held hostage in an abandoned slaughterhouse. The madman who has them at gunpoint has a simple plan: One hostage an hour will die unless the demands are met.

Called to the scene is Arthur Potter, the FBI's best hostage negotiator. He has a plan. But so does one of the hostages—a beautiful teacher who's willing to do anything to save the lives of her students. Now the clock is ticking as a chilling game of cat and mouse begins.