Witty, funny, hearty, an original picture book about uniqueness, acceptance, and love, depicted through the most unusual pet a family can get. Beware: a huge demand from children wanting their own we-don't-know is likely to happen.”—Evelyne Holingue, author of the middle-grade historical novel Chronicles from Château Moines "A tea-drinking we-don't-know is about to steal your heart! Rex the . . . We-Don't-Know is a traditional tale of a family pet as well as a story of welcoming differences. A fun, and important, book on acceptance."—Shutta Crum, author of Thunder-Boomer! Adopting a pet from the pound is always an adventure and sometimes it can be out of this world! From his unusual color—a lovely shade of rainbow—to his sparkly horn, Rex is just a little bit different. No one really knows what he is or how to take care of him. Max and Raven know they really like him, but their parents are just not convinced! What will it take for Rex to be the perfect pet? Find out in this colorful tale from talented author Heather Macht and illustrator Chase Jensen! "Filled with fantastic fun facts and interesting science tidbits, Macht does a masterful job of weaving STEM into her whimsical picture book. A great addition to any young reader's classroom."—Jennifer Swanson, award-winning author of Brain Games