The realm of the living is one filled with great experiences, daring adventures, and lessons to be learned. But the veil between life and death is thin, with some areas thinner than others. Such instances of severe trauma, extreme emotions, or ancient magics can cause some individuals to resist the pull of death and hover around the world of the living, their motivations unknown save to those themselves. Such entities can be found in places long forgotten, ancient battlefields, dungeons, and broken ruins.
 
Encountering such entities could be a passive uneventful event, or it could be disastrous regarding one’s own life. Such entities tend to leave a paranormal substance on the surface that they pass through.
 
As such adventurers that I have traveled with over the years have found the time to collect it and bring it to me, for spells, protections, and potions to aid them as they dungeon crawl.  This has been a mutual operation for all involved, thus, providing ample opportunity for my apprentices to purify it and bring it to you. Corked and sealed in a vial, to preserve its potency. Sufficient for all magical potions, magical studies, and spell components.