Professor Wormbog is a very dedicated collector, but he does not collect stamps or coins. He collects the strangest, wildest, and most wonderful monsters in the entire world. He thought he knew everything about taking care of his unique creatures, until one particular monster completely stumps him. The Gloomy Kerploppus is sitting around feeling incredibly sad, and nothing the Professor does seems to cheer it up. How do you make a deeply gloomy Kerploppus happy again? You will have to join the clever Professor as he searches for the perfect cure for his miserable monster. Journey through a fantastically weird landscape filled with odd creatures and hilarious attempts to bring a smile to the Kerploppus's face. This brilliantly imaginative tale is a wonderful exploration of empathy, problem-solving, and the delightful world of perfectly peculiar pets.