Mephits are often sent by Lower Planar spellcasters, fiends and powermongers of Sigil to their enemies to convey messages. The variety and quantity of mephits sent relays the message in the form of an ancient code, the dark of which is laid bare below. The recipients of such mephit messages are free to do what they will with the elemental creatures; keep them, enslave them, or destroy them; the meaning's the same. Mephits are never sent to friends or allies, as anyone who's ever met a mephit understands.
Smoke