This time the popular Rottweiler, baby on his back, follows his charge's parents to a costume ball where—among other imaginatively got-up people—they see a buxom lady dressed as the baby, complete with a model of Carl that she seems to be riding. Painted with more impressionistic freedom that others in the series, as befits the imaginative subject; fans will find Carl as sweet and his exploits as appealing as ever. (Picture book. 3+)