The wizard students are in trouble! It’s long past bedtime but they sneaked out of the wizards’ school to visit the secret midnight market and see the flying brooms and talking cats they heard the grown-ups talk about. Unfortunately they don’t get far: while they cross the forest near the wizards’ school Willy the Warden Ghost takes up their trail. Now they have to double back fast or they are facing detention. But the forest is too dark to find the way back without help. Luckily they have an idea: The Lumies, magical glowing creatures that live in the forest, can light their way back to the school. The wizard students need to stick together to find the Lumies and make it back to the school before Willy catches one of them.