The construction never stops, and neither do the laughs! Andy and Terry have expanded their incredible home once again, adding thirteen new stories packed with outrageous fun. Now you can take a swim in a massive chocolate waterfall, safely toast marshmallows over a non-erupting active volcano, or spend the afternoon at the brand new baby-dinosaur petting zoo. Watch out for the boxing elephant known as the Trunkinator, and do not miss the top-secret thirty-ninth level that is still under heavy construction. Since Terry has invented the brilliant Once-upon-a-time machine, which writes and illustrates their entire book for them, the boys finally have all the free time in the world to goof off. But relying on a machine to do your homework usually leads to disaster, especially when the world's greatest un-inventor, Professor Stupido, enters the picture. Jump onto the world's highest trampoline and get ready for a wild ride.