Be careful what pet you wish for in the newest picture book from fan-favorite author Ame Dyckman and rising-star 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 Dyckman, creator of Wolfie the Bunny and cheerful illustrations from Rory the Dinosaur creator and Tumblr star Liz Climo, this rollicking story shares...