Penelope Kingston is the ONLY person who has managed to avoid the dreaded crush plague sweeping Chelsea Primary. Almost all of her friends have crushes โ even her brother has been infected!ย Penelope is excellent at figuring most things out, but crushes are a Great Mystery to her.ย Luckily, she has come up with a quiz to diagnose crushes early, before they have a chance to make people Very Silly.ย But what happens when the quiz shows that one of Penelopeโs favourite people clearly has a crush on her?