Shunned by his people and tormented by nightmare visions, Bugbear, the mad goblin scholar, ventures into the wilderness with his ne'er-do-well cousin, Tudmire, to seek out an ancient ruin and the lost wisdom it holds.
Soon the cousins find themselves embroiled in cosmic events as their magical world of Annwfn is merged with 19th Century Earth after an accident concerning a mysterious scroll Tudmire acquires in a crooked game of Noggle Stones. While fleeing the enraged ogres they cheated, Bugbear and Tudmire happen upon Martin Manchester, who appears to be a creature of mythology known as a human. Bugbear takes Manchester as his apprentice, agreeing to teach him the empowering ways of Non-Logical Thought. The trio soon discovers that dark forces have aligned against them, and the two worlds may have been merged only to be destroyed!