The coolest place to live just got twice as massive! Andy and Terry have added thirteen brand-new stories to their already amazing home, bringing the total to an incredible twenty-six levels. Now you can crash around in the bumper car rink, defy physics in the antigravity chamber, or try all seventy-eight flavors at the ice cream parlor run by an actual robot. Just be extremely careful if you step inside the dreaded Maze of Doom, because absolutely nobody has ever managed to find their way out. This week, the two friends have a very tight deadline to finish their next book. Andy has the perfect idea: they should write the true story of how the two of them first met. But life in the high branches is never calm or boring enough to get work done easily. Between emergency shark operations, massive storms, and floating wooden pirate heads, staying focused is going to be their biggest challenge yet.