Fireball kills Frankenstein ['s monster]
Dagger kills cannibal
Holy water on grave kills graveyard thing
Rope extends rope to lab
Barrel helps you reach a few things
Wand extends bridge
Lantern lights graveyard
Crosses are dropped next to Citadel-rip-off sanctuary, but there's one left to find
I have what seems like a gold bar and I thought it was for the Styx ferryman but it wouldn't accept it. There's an object with a S and I don't know what it's supposed to be. There's what looks like a stake but it is found next to Dracula and it doesn't seem to hurt him.
Anyone know anything else?
Cheers.

Here's the map so far: https://www.dropbox.com/s/jrwxbrf42mp2l33/Map.png?dl=0