In the third title in this magical series. Miss Strega decides Jessica has to learn not only how to be charming, but how to DO charming. She takes her on holiday to the Charm Archipeligo and there, on Charm Major, she meets her summer school teacher Pelagia. Jessica finds a lucky pebble that helps her with her charm skills. First she unlocks the charm surrounding the boat that only rows in circles; then she creates a charm to ward off spiders from people that hate them. But, when she decides to have a peek into Pelagia's private box of magic, Jess unleashes the foulest winds in the universe and has to be at her most charming to avoid a severe ticking off from Miss Strega. Further magical adventures for this ten-year-old witch.