"Gleeful unicorn havoc."—Publishers Weekly "Imaginative fun."—Booklist "A crowd pleaser."—Horn Book Be careful what pet you wish for in this hilarious picture book from New York Times bestselling author Ame Dyckman and beloved illustrator Liz Climo. When a little boy throws a coin in a well asking for a pet unicorn, he has no idea what kind of trouble he's in for. Unbeknownst to him, unicorns make the absolutely worst pets: they shed, they poke holes in your ceiling, and they make a big mess. With a knowing wink from Ame Dykeman, creator of Wolfie the Bunny and cheerful illustrations from Rory the Dinosaur creator Liz Climo, this rollicking story shares all of the ways a pet unicorn can ruin your life, and is sure to have readers in stitches. Don't miss some of these favorite Ame Dyckman titles: Wolfie the Bunny Horrible Bear! How Dinosaurs Went Extinct: a Safety Guide You Don't Want a Dragon! Also available in a shorter board book edition.