There's a little known and delightful Mexican festival, a day on which caged birds are bought to be set free. This is here combined with a good dog story. A Mexican-Indian family, the father a toy maker, have a son Alberto who wants above all else an appealing pup, Hector. In the course of the festival, Alberto acquires Hector. The reader- in the progress of the story-acquires a pleasant bit of information, both through text and the spirited, gay drawings by the author.