The 104-Storey Treehouse: Andy Griffiths

The 104-Storey Treehouse is the eighth book of Andy Griffiths and Terry Denton's wacky treehouse adventures, where the laugh-out-loud story is told through a combination of text and fantastic cartoon-style illustrations.
Join Andy and Terry in their 104-storey spectacular treehouse (it used to be a 91-story treehouse, but they decided it was still missing a few things). They've added thirteen new levels, including a never-ending staircase, a burp bank, and even a mighty fortress. But Andy and Terry are in a race against time to find a funny story for their next book - and Andy had a toothache that hurts so bad he can't write any jokes for their new book. Will the tooth fairy be able to help?
But Terry knows just what to do: buy a Joke Writer 2000™ to write the jokes for them! All they need first is some money from their money-making machine and then it's off to the store. It's a foolproof plan-a Terry-proof one, even!
Well, what are you waiting for? Come on up!