Old Grumbly, a massive volcano that looms over the Urk valley, has begun to rumble and many Urks fear The End of the World is nigh. They agree that the only way

Old Grumbly, a massive volcano that looms over the Urk valley, has begun to rumble and many Urks fear The End of the World is nigh. They agree that the only way

Captain Underpants meets Marvel comics in this very funny and very silly new series from the bestselling author of Dirty Bertie

Old Grumbly, a massive volcano, has begun to rumble and many Urks fear the end of the world is nigh. They agree that the only way to avoid catastrophe is for so

Iggy is different from the rest of his tribe, the Urks. He isn't interested in the usual things such as flint tools, hunting or boulder-rolling. He's always dau