Lucas has lost his dog, Choco. He is very sad and also concerned about the well-being of his pet, so he looks for him everywhere. When his classmates advise him to forget Choco and get a new dog, Lucas' sadness becomes deeper and heavier. But Lucas decides not to give up! What would you do to get your beloved four-legged friend back? This book that hugs helps readers navigate the emotions that arise when something very valuable is lost.