Barrel of demon ichor

Morgantha has a barrel in area O1 of Old Bonegrinder. She can use greenish-black demon ichor filling it to conjure a dretch up to 9 nine times before using up the icor by knocking on the barrel several times. (The ninth summoning uses up the last of the ichor.) Each time a dretch is so conjured, it remains for an hour before decaying into a puddle. Morgantha can also ulitize the barrel as a font for scrying purposes.