The Manosaurs are back! But now they have to throw down against the Thesaurus. Watch out kids. Don't you know there's nothing scarier than an angry librarian? Frightened by the press attention following the battle with Man-Comet, Denise and Doc try to keep the Manosaurs hidden at home. Champing at the bit, Rapt and Pterry sneak out, only to be captured by two dino-hunting school-kids. The kids threaten to reveal them unless they agree to be their pets! Meanwhile, well-meaning librarian Regina Roget, bemoaning the lack of book readers, allows the villainous Armageddon to use his powers to turn her into Thesaurus, the thing with many names! She fashions a brontosaur-style monster from unread books. But rather than use it to help the villain escape his crystal prison, she wreaks havoc, destroying game and phone stores throughout the city! Will the others find Pterry and Rapt in time to stop her, or will reading become our only form of entertainment?