After Mischief Managed

Follow Nick to Lupin's classroom.

Time to learn how to defeat the Dementors. You are going to have to defeat 5 of them. Blast the chests to revel the Dementors, then cast Expecto Patronum to defeat them. The first two chests are in plain sight. The third is held by a Pixie, and the fourth is covered by vines. For the fifth, zap the cabinet on the right to reveal LEGO pieces. Build them into a projector, then zap it to reveal a movie. Zap the frame to reveal the fifth chest. Defeat all of the Dementors to complete the class. You just learned Expecto Patronum!

Follow Nick out to Hagrid's.