An apprentice magician dinosaur living in Monsterland, Theo Saurus, made a mistake while practising a spell one day. He turned the lands Jellyland, Pipeland, Spottyland, Cherryland and Rockland into sad places, void of color or life. Theo began living underground in a hidden cave to avoid the wrath of the other monsters until discovered one day by the hero of the story, Mayhem. Mayhem promised to bring Theo the necessary magic dust to transform Monsterland to its previous happy state.
