With Saint Dane seemingly on the verge of toppling all of the territories, Pendragon and Courtney set out to rescue Mark and find themselves traveling--and battling--their way through different worlds as they try to save all of Halla. When Bobby Pendragon first arrives on the tropical world of Ibara, he finds paradise. As he works to uncover clues about the turning point this seemingly idyllic territory will soon face, all he can determine is that...

Each of the Travelers returns home to learn the truth about their origins before being reunited for a final, ineveitable confrontation with Saint Dane, whose efforts to control Halla are destroying its very foundations.

Bobby Pendragon is a seemingly normal fourteen-year-old boy. But there is something very special about Bobby-- he is going to save the world. Bobby is slowly starting to realize that life in the cosmos isn't quite what he thought. Before he can object, he is swept off to an alternate dimension known as Denduron, a territory inhabited by strange beings, ruled by a magical tyrant, and plagued by dangerous revolution.

Fifteen-year-old Bobby Pendragon and Spader, the Traveler from Cloral, flume to 1937 New York City and try to uncover the evil Saint Dane's newest plot.