Aiden works with the FBI in order to rescue his sister Meg, who was kidnapped.

Thirteen-year-old Dan Cahill and his older sister, Amy, thought the search for the thirty-nine clues leading to the source of their family's power was over, but when Cahills are kidnapped by the Vespers, Amy and Dan find themselves with only a few day to fulfill a bizarre ransom request before their friends start dying.

Aiden works with the FBI in order to rescue his sister Meg, who was kidnapped. Where is Meg Falconer? Everybody wants to know. Her brother Aiden, who saw her kidnapped and is now trying to track her down, wants to know. The FBI, led by the very serious Agent Harris, wants to know. Her parents, who fear their pasts have something to do with why Meg was taken, want to know. Even Meg's kidnappers want to know. Because even though they caught her once,...

When eighth-grader Cameron Boxer creates the Positive Action Group at school he intends it as a diversion to fool his parents, teachers, and sister into letting him continue to concentrate on his video-gaming--but before he knows it other kids are taking it seriously, and soon he finds himself president of the P.A.G., and involved in community service, so the boy who never cared about anything is now the center of everything, whether he likes it or...