After leaving for home after his first adventure on Denduron, Bobby finds out that his entire history and proof of existence had simply vanished, including his house.

After seeing this, he decides to go to Cloral in order to stop Saint Dane, a demon traveler who wants the territories to go the wrong way, so he can recreate them in his own image.

One day, another habitat called Magorran, which is responsible for manufacturing, suddenly appears in the distance and is speeding full throttle towards Grallion.

Spader comes up with a solution to save Grallion- diving over to the raider's ship, they disabled the engines which provided water for the cannons.

On Zadaa, after an encounter with a Rokador, they made it to the surface and went to a Batu (the name of the tribe) tournament to find Loor.

Sadly, Spader was only concerned with avenging his father by killing Saint Dane, whom they suspect poisoned the crops.

Bobby and Spader flume back to Cloral, where they find themselves heroes as Grallion defeated the raiders when their cannons were useless.

Bobby, Press, and Spader sink down and enter the city, where they learn that the Faarians have invented something to cure the crops.

[1] Publishers Weekly gave a more positive review, stating that the setting would likely appeal to fans of Jules Verne's books.

[2] Writing for the School Library Journal, Susan Rogers also gave a positive review, stating that the book had clever ideas and an exciting plot, and while the characters tended to be stereotypical in their development, they did enlist the readers' sympathy and involvement.