Melissa， Thomas， Betty， and Arthur have one thing in common： extremely unsuitable pets! An exuberant book packed with visual humor. There are certain animals that make suitable pets， like a cat， a dog， or a guinea pig. Then there are others that make， well， unusual pets， like an octopus， a warthog， or an elephant. They’re too large， too messy， and maybe a tad too free-spirited with a tendency to break things like tables， floors， and even ceilings. But can you guess what makes the most unsuitable pet ever?