"As an artist creatively incorporates her slipups into a drawing, readers see the ways in which 'mistakes' can provide inspiration and opportunity, and reveal that both the art and artist are works-in-progress"--

Andy and Terry's amazing treehouse has thirteen new levels including a chocolate waterfall, a nonerupting active volcano, an opera house, a baby dinosaur petting zoo, Andy and Terry's Believe it or Else! museum, a not very merry merry-go-round, a boxing elephant called the Trunkinator, an X-Ray room, a disco with light up dance floor, the world's scariest roller coaster, and a top secret 39th level that hasn't even been finished yet!

Publisher Annotation: Andy and Terry live in a 91-story treehouse. (It used to be a 78-story treehouse, but they keep getting ideas for new stories!) It has a submarine sandwich shop that serves sandwiches the size of actual submarines, an air-traffic control tower, a human pinball machine, a spin-and-win prize wheel, a giant spider web?with a giant spider!? and a big red button, which they?re not sure whether to push or not because they can?t remember...