 It is also considered an influential classic in the steampunk and dieselpunk genres.An airship carrying Sheeta, a young orphan girl who has been abducted by government agent Muska, is attacked by Captain Dola and her air pirate sons who are in search of Sheeta's small blue crystal pendant.In the resulting struggle, Sheeta falls from the airship but her descent is slowed by a mysterious power within the amulet.