It's time for Jack Frost to learn his lesson! Best friends Kirsty Tate and Rachel Walker usually only get to spend vacations and holidays with each other. But for a special week, they'll both be going to the same school! It's a good thing the two friends are together. Jack Frost is causing trouble at the Fairyland School—and the School Day Fairies need help! Rachel and Kirsty have to work quickly to help Marissa recover her missing magic science badge. If they don't get it back, science class will never be the same!