An evil rat has come to town! How will little puppy Lucky and the cats catch him and become Heroes of the City? The latest masterpiece by Peter Pan Prize-winning picture book author and illustrator Chen Chih-Yuan is a detective story with details and clues hidden in the pictures – children will have fun reading the story and solving the mystery!

At the dog-breeders’ there is a puppy with a pig-like snout and a funny-looking coat. The other puppies make fun of him. On the way to the pet shop, he falls out of the van, wanders the streets and meets a pack of vicious dogs! A group of cats rescues him, and takes him to Cat School, where they have lessons in a yoga, tightrope walking, and special techniques for catching mice. When a giant rat suddenly appears in the city, scaring everyone with his horrible antics, Lucky and the cats decide to help the police and become Heroes of the City.