The Great White Bum is using the brown hole to send prehistoric great white bumosaurs back through time to giant-brown-blobbify the human world into total bumblivion! With the help of Eleanor, his fellow bum hunter, Ned Smelly and Robobum - Ned's fully riveted, reinforced-steel, robotic Great White Bum - Zack and his behind must wipe out the Great White Bum forever . . . Bumageddon has begun.

A hilarious, comic action thriller, pun-packed and pacy!

There are 304 pages in this book. This book was published 2006 by Pan Macmillan .

Jill Griffiths is a very talented editor, and also Andy's wife. She is a key member of the Treehouse team and helps to brainstorm the fantastical adventures. She lives in Melbourne, Australia.