Some things are unexpectedly charming. This is expectedly charming, because I'd expect no less from mathbrush. :-) The story and the puzzles are good (a little heavy on the run-back-and-forth, perhaps; I thought the garage/treehouse was the best of them), but the best part is all of the little details. Examining yourself and your family members on different , er, floors of the house; the descriptions of Joe's work as he ages; the calendars, the carpets, the various events. Really good.