The Sigil
Discovered in the bowels of the lava caves in Bears Grove, this sigil was used by the necromancer called Dorokova to hide their meddling in the dark arts, and their growing number of ghouls. It was created by their lackey, Yerith, a drow that has attempted to murder the party on more than one occasion, and has a history of working with powerful necromancers for unknown ends.
Carrying this mark, or using it to cover an area where necromancy is being practiced will hide the deeds from the very watchful eye of the Void Walkers.
Dorrah has requested that it not be used by the party, so that she may be able to find them when needed. It is up to Bal to decide if he will heed her request, or deliberately block her sight out of his extreme distrust of her dark-eyed master.