Uncle Jake arrives at Henry's home with a truckload of boards in his pickup truck. Armed with a toolbox and an instructional pamphlet, he announces that he is about to provide adventure, in the form of a tree house. Henry is thrilled with the idea of a tree house, until he realizes their fatal flaw: Mudge can't climb trees, so Henry will not be able to share the adventure with his dog. Henry begins to worry, as an oblivious Uncle Jake completes construction in just two hours. Despite a gallant effort, Henry can't enjoy the tree house, and his frequent trips into his real house because he forgot something soon tip the adults off that all is not well. An innovative solution is at hand and the final chapter of this easy reader. (Ages 5‑7)