Coll Malruba needs to get to Underland to be with his family, but it's not going to be easy. It's a long and dangerous journey. Coll boards the Tarantula Spider for his adventure, even though people who travel on this ship don't expect to return.
Along the way Coll encounters a pirate named Cap'n Blood and his alcoholic crew, the Dogman and his wild dogs, tribes of people known as the Limbo Bimbo and the Angwish, and Ennaves and Innaves. He's held captive on Skeleton Island, pretends to be a spy, is almost sawn to pieces, is dramatically rescued by strangers only to be captured again, accidently steals the Book of Grogoch, and is even in danger of being the main course at dinner. He makes a few new friends and many new enemies.
Will Coll avoid being attacked, stabbed, hung, shot, eaten, chopped up, getting lost, or drowning? Will Captain Cut Troat Clare be able to keep the Tarantula Spider safe? Will Wizard Globdrob's spells and potions be enough to save Coll?
Will Coll make it to Underland?