Cigarette lighter...
	Inventory items...
	Keys...
	Puzzle in Dracula room...

The cigarette lighter looks like an old nine-volt battery.

Give inventory items to NPCs that you encounter to learn how they are used.

Keys are not completely utilized until they disappear from your inventory. If one still appears, it still has a use at some point in the game.

Press the buttons on the mirror in Dracula's room in the following order to solve the puzzle: 6 (lion),7 (girl below line), 10 (goat).