No Mushrooms in Your Dorm
First if you go into the by the haunted house, someone should say "Hey you can you hear me?" Go up to the biggest head stone and press a. He should ramble on about how he was the ruler. After that he wants you to find 10 shade remains. You could get them by trading in bugs at the Principles house. After you get all 10, go back and talk to Shade. He will transform into his original form, then he makes no mushrooms grow in your dorm if someone cursed you. Also no more weeds will be in town.
More tricks, tips and cheats for this game are right here - Magicians Quest: Mysterious Times cheats
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