This second volume gathers the final four Kairos novels, in which Meg and Calvin's daughter Polly takes center stage. In The Arm of the Starfish, Polly disappears, and Calvin's research assistant is implicated in her kidnapping. In Dragons in the Waters, Polly and her brother Charles are on a steamer bound for Venezuela when they help solve a murder connected to a stolen portrait of Simon Bolivar. Polly receives an education in different kinds of...