Dust of Ibn-Ghazi
Origin: first appears in "Dunwich Horror (fiction)"(?)
AKA Dust of Seeing, Witness of the Unseen, Compound of Perception
A silvery, talc-like substance, identifiable with a successful Cthulhu Mythos roll, that sticks to the skin like graphite imparting a "greasy" feeling; the powder is easily ashed away.
The Powder of Ibn-Ghazi can momentarily render invisible creatures partially visible, and immaterial creatures semi-solid, when dusted on the target by blowing it through a tube or sprinkling it over the target.
- "Those without the telescope saw only an instant's flash of grey cloud — a cloud about the size of a moderately large building — near the top of the mountain. Curtis, who held the instrument, dropped it with a piercing shriek into the ankle-deep mud of the road. He reeled, and would have crumpled to the ground had not two or three others seized and steadied him. All he could do was moan half-inaudibly." — H.P. Lovecraft, The Dunwich Horror"