Lost Mine of Phandelver
Prophet of Air, Leader of the Cult of the Howling Hatred
Aerisi was first encountered on Nightal 18, 1491 DR, by the Called in throne room atop the pyramid in Tyar-Besil, in the part of the ancient dwarven fortress held by the Cult of the Howling Hatred, which the cultists were calling The Temple of Howling Hatred. She appears to be an Avariel, one of the winged elves of myth and legend.
After the Called dismissed her djinni servant and did battle with her invisible stalker, Whisper, and some of her cult, Aerisi fled through a hole in the floor at the base of the pyramid. When she fled, her remaining cultists followed, leaving the section of Tyar-Besil devoid of cult presence.