Dear Peter Rabbit

Reminiscent of Janet and Allan Ahlberg's hugely successful The Jolly Postman , this clever picture book creates a fictitious flurry of correspondence between such familiar characters as Goldilocks (here given the surname McGregor, with a wink and a nod to Beatrix Potter), the Three Pigs, Baby Bear, Red Riding Hood and Peter Rabbit. As the plot thickens (will Goldilocks make a return visit to the Bears' house? Will Peter Rabbit be well enough to attend the Three Pigs' housewarming party?), Ada inventively weaves together the criss-crossing letters, neatly tying up the loose ends with a finale wherein the entire assembly (except for the now-tailless wolf) shows up for Goldilocks's birthday party. Ada clearly had fun extrapolating the characters' private lives, and her sunny treatment finds ready companionship in Tryon's delicately colored, lovingly detailed pen-and-ink and watercolor art. A Spanish edition, Querido Pedrin , is being issued simultaneously. Ages 5-8. (Mar.)