The struggle of good versus evil continues as Bobby Pendragon follows Saint Dane to the territory of Zadaa. Saint Dane's influence has fueled the fire of discontent between two warring tribes: the Rokador and the Batu. This is also the territory where the Traveler Loor lives, and together she and Bobby work to thwart Saint Dane's efforts to destroy Zadaa.

But as Bobby pursues Saint Dane, he begins to notice changes in himself. He is no longer a flip kid looking for excitement. He is a young man beginning to see this quest as more than a series of adventures. He is also learning that as a Traveler, he has powers no normal human from Second Earth should have. In one desperate act Bobby learns he has the greatest power of all - over life and death.