Bottle of Smoke

The Bottle of Smoke was a gaijin nemuranai of the Burning Sands. The small transparent glass bottle was almost a sphere, with a slightly flattened bottom so it could rest atop a flat surface, and a corked neck at the top. The bottle was filled with a swirling cloud of black smoke, which contained the essence of a djinn. If opened the djinn would be bound to obey the wishes of its releaser for a period of one month and one day. Presumably at some point a member of Shinsei's line determined the bottle was too dangerous to remain in the open, and it was secured within the Tomb of the Seven Thunders.