Wait to be summoned bodily to earth

Ishara turned her empty eyes to the rolling chaos of the skies above hell. The shrieks of the damned, their skin blasted from their bones endlessly, was louder even than the wind of the eternal tempest, but even so, Ishara could listen to the faintest words, impulses, curses coming from the mortal world. The language of magic sounded the loudest, and soon Ishara learned to separate out the spells by their kind, the mundane invocations to clean a house, open a doorway from this place to that place, and listen only to the beckoning words that mattered most to her. The summons of a wizard, bringing up a demon from Hell.

Twice, Ishara thought she heard a call, only to curse blackly when the summoner named a demon in particular, barring her from answering. But there were countless mortals, countless wizards, and soon she heard the call she had been waiting for.

“Demoness of the pit, bitch of desire, heed me, obey me. Appear now before me in a form neither threatening nor familiar, for I bind you. I summon you. By blood and bone, feather and stone, by the rites of Mai-Ka, come to me.”

It had not been a mortal looking for a succubus in particular, true, and that exact invocation was not the sort normally used. But as young and powerless as she was, she could be brought through by the sacrifice placed into it.

Ishara took to the sky, effortlessly on leather wings, and answered the call.