Some ghoul has stolen all the Halloween candy in town.
It's locked in a vault somewhere in this old manor, and trick-or-treating is ruined unless you get it back.
The ghoul left a science clue behind every door. Each clue gives you the code for that door's lock.
Open all eight doors and the vault is yours. If time runs out, the ghoul keeps the candy.
Your teacher thinks you can save Halloween. Let's find out.