That looks interesting, I make a search check for loot.
Wait... what comes at me?
Also known as the Circle of Soul Stealing, a devious and powerful trap
Money=zombies. Who knew that the room with pictures of people getting killed would spawn undead things trying to kill you?
The door that cannot be reached, the wall that cannot be climbed
It sure looks like a normal doorknob...Wait a second...Did it just move?!
Consider your grip and consider just how important the iron spikes and 10 foot pole are.
When you sleep, your soul briefly returns to the place where it was created/goes to when it dies, and seeks nourishment. Everybody's soul is created with a little link (or you could say a greater entity calls it back) to that place so that it can return easily, but upon death, the soul returns via that and annihilates the link as if returns.
Also, as an added thingy, you could say the entity supplying the link, or residue of the links themselves, (whichever) is the source of all arcane power.