Sometimes when you are delving you might find yourself in a room full of goblins, orcs or trolls and find that you have to relieve them of their mortal coils as well as their gold. But when the wet-works are over you are covered in guts, offal and entrails, not to mention the rest of the area.
Well fear not! If you have a level 2 Wizard he can cast a "I Hate Your Guts" spell! It'll clean up any mess of a sanguinary persuasion leaving behind no evidence that there had been a battle there. Leaving marauding monsters none the wiser.
This level 2 spell can only be used once per day.