First, there were ten—a curious assortment of strangers summoned as weekend guests to a private island off the coast of Devon. Their host, an eccentric millionaire unknown to all of them, is nowhere to be found. All that the guests have in common is a wicked past they're unwilling to reveal—and a secret that will seal their fate. For each has been marked for murder. One by one they fall prey. Before the weekend is out, there will be none. And only the dead are above suspicion.

Convinced her brother's death was murder rather than suicide, sixteen-year-old Frances begins her own investigation into suspicious student activities at her boarding school.

Christopher Boone is a fifteen and has Asperger's, a form of autism. He knows a great deal about math and very little about human beings. When he finds his neighbors' dog murdered he sets out on a terrifying journey which will turn his world upside down.

A teenager casually suggests playing a cruel trick on the English teacher, but did he intend it to end with murder.

Tired of the rules that have bound them ever since "the bad thing happened," twelve-year-old Diana ignores her brother's warnings and befriends the daughter of the new caretaker, setting in motion events that lead to the release of the spirit of an evil, crazy woman who once ruled the old Willis place.

Seventeen-year-old Stacy awakens from a four-year coma ready to identify, locate, and prosecute the young man who murdered her mother and wounded her.