Filbert MacFee is having a lively time in the hospital. When Nurse Skeeter is ready to give him a shot, he turns into a thick-skinned rhinoceros! The moment he sits in an ice-cold wheelchair headed for X-ray, he becomes a penguin. Crafty Nurse Beluga outwits Filbert in all his animal transformations, but good news comes at last-Dr. Kebob! Once he stops being an orangutan, he tells Filbert he is well enough to go home. Rollicking verse, a quirky cast of characters, and Sue Truesdell's inimitably zany drawings turn a hospital stay into a reassuringly comic escapade.