Two years have passed since Senta, the sorceress Zurfina, and Bessemer the steel dragon, and hundreds of colonists arrived in the strange land of Birmisia. Their new home, Port Dechantagne is under construction in this dark and forbidding land, ruled by terrifying dinosaurs and strange lizardmen. Ten year old Senta must discover which is the greater threat, a would-be wizard or the ever-increasing presence of the tyrannosaurus. Meanwhile, former maid Yuah Korlann must negotiate living among the aristocratic Dechantagne family and deal with their new servants, the aboriginal "lizzies." And young militiaman Saba Colbshallow finds himself in the middle of espionage intrigue.