When Mr. Betts's eight different pets develop spots, he takes them to the vet. Dr. Potts's medicine cures the spots-but gives them stripes instead! This hilarious rhyming story rollicks along from one problem to the next as Dr. Potts finally cures Mr. Betts's wacky collection of pets. When Mr. Betts's eight different pets develop spots, he takes them to the vet. Dr. Potts's medicine cures the spots-but gives them stripes instead! This hilarious rhyming story rollicks along from one problem to the next as Dr. Potts finally cures Mr. Betts's wacky collection of pets.