Monica Plum's Horrid Problem - Book

Monica has a horrid problem that gets everywhere: into her schoolwork, her dreams, and her ability to make friends. She feels as if she is carrying around some very heavy luggage.

Then one day, a helpful teacher sees how miserable Monica is, and tells her about the knights in the world, who are posing as people. Monica finds some of these knights who teach her how to make her problem far less horrid. In particular they show her how to cope when other people's problems weigh you down and make you feel miserable. Most importantly they show her how to do life well.