A sweetly understated story about the acceptance of a new baby, appropriate for the peekaboo age. Peter has a game: in the bathtub, he's invisible if his washcloth is draped over his back. His parents cooperate with him by searching everywhere till he reveals himself. When baby sister Abby arrives, his parents are so busy that they don't play Peter's game quite so often anymore; but when at last Abby is big enough to have a bath in the big tub, Peter teaches her his game--and his parents are delighted. Kunhardt's simple, attractive illustrations are clear and large enough to share with a small group of toddlers. The straightforward, repetitive text will suit them perfectly; it deftly conveys the natural feelings of a well-loved small person, quietly finding space in his affections for the interloper in his close-knit family.