Applegate likes to experiment, and her novels tend to be lively exercises in ideas and techniques. In the case of Everworld, she creates a place where the world's ancient mythologies coexist, and she has fun creating adventures that involve mixing the mythologies. For the "Everworld" series, she creates four adventurers who are snatched from fairly ordinary teenaged American lives, although Jalil's psychological problems are somewhat out of the ordinary. Through these characters, she experiments with techniques of narration by having each one narrate a novel. David narrates Search for Senna, which introduces Vikings, Loki, and Norse mythology. Jalil's Realm of the Reaper delves more deeply into Norse myths about life and death and the underworld than Search for Senna does. It also tells of hell and where Thor is to be found. Christopher's Land of Loss focuses more on Aztec mythology than Norse mythology and introduces...