Necronomicon: Liber Maledictus is about a group of dinosaurs that were transported from another dimension to Russia, where they met Rasputin, an evil wizard. Rasputin is no help to them in their search for a way to get back home, so the dinosaurs go searching for the book called Necronomicon on their own. However, Bubo Amica and Avus do not want Rasputin to get the Necronomicon because he could do bad things with the book-like summon Cthulhu. Will they be able to stop them before it is too late?