Type of hag from the Dimension of Dreams known for riding people’s dreams while they sleep, and literally draining the life out them before sucking their soul into their heartstone where it is sold in the Abyss for great sums of money. They ride a mortal body from the Ethereal Plane. Devastatingly hard to hurt. Wrapped with layers of damage reduction (overcome by magical cold iron weapons), high spell resistance, and immunity to cold and fire. Capable of transmitting demon fever with their bite: once a victim of this disease hits the “impaired” stage, the disabilities caused by this disease become permanent until healed with very high-level magic.
The Night Hag the party encountered in Chapter 48 presented as an ancient, withered old crone with purplish wasting flesh, skeletal, dressed in rags with a giant ruby, and unable to fly on the Material Plane. She had two curled ram’s horns on top of her head.The particular night hag the party fought spoke of being frozen between Planes when Ariadne left.
Apparently, the vanishing of the Briarstone Witch 700 years earlier left the hags of the Thrushmoor region “torn between worlds.”
They party encountered another Night Hag in Chapter 143: Ambassador Quaveandra. At that time, they recalled that it is their Heartstones that gives the hags the ability to travel to and from the Ethereal Plane.
First Reference: Chapter 48
Other Notable References: Chapter 50 (Part 1), Chapter 101, Chapter 143