Frank Sonderberg, the main character of the novel, finds himself in the most incredible situation - the fate of all humanity depends on him. Together with his family, new friends - a crazy Indian and an alien girl, he enters into a duel with the evil Anarch - the embodiment of the forces of universal evil. Traveling through parallel worlds, the heroes find themselves either in Hell, or at the bottom of the ocean, or in the cosmic abyss.

The book is distinguished by Alan D. Foster's boundless inventiveness and unobtrusive humor.