Thomas is Teresa's little brother. Like any younger sibling, he loves to get in the way and annoy his big sister. But one day Teresa hears a "ROAAAAR!" upstairs and everything changes. Could Thomas really have turned into a . TIGER?! ? Explore the ups and downs of sibling relationships in this hilarious story about the power of imagination and the unique sibling bond. With quirky, dynamic illustrations and humorous text by Joaquín Camp, this book will have you gripped, giggling, and maybe even roaring!.