Old Bonegrinder

The windmill to the east of Vallaki, referred to by Count Strahd von Zarovich as "The Old Bonegrinder", was occupied by Morgantha and her two daughters, the coven of nighthags. They used the windmill to make their Dream Pies out of children.

It is thought that the windmill belonged to the Durst family as Narid Ashplantt found the deed to it in the Durst House, and Baron Vargis Vallakovich confirmed the windmill in the deed to be the same as the one to the east of the town.

The windmill stands on desecrated grounds, and the party were warned away from entering the first time they passed by a raven, possibly one of the Martikovs in wereraven form. Irahja, a Vistani, told the party to stay away from windmills.

Next to the windmill is one of the Standing Stones.

History
It isn't known how long the windmill had been occupied by the nighthags.

In a deal struck with Jenny Greenteeth the party of Hallgrimm Mikkenson, Sigismund, and Narid Ashplantt agreed to kill the hags in the windmill and return their heads to her in return for having their three curses removed from them. Archwizard Khazan felt it was likely related to the Standing Stones.

The party's assault on the windmill started strongly with Hallgrimm's Silence spell preventing the hags from using their magic to gain the upper hand and Sigismund's Protection from Evil and Good making it difficult for them to hit him physically, however the hags were able to gain the upper hand and capture the party, forcing them to share information with them on why they were here.

The hags allowed the party to leave with their lives, and even lifted Narid's curse from him, in exchange for some items which they surreptitiously took from the party members.

Three days later Hallgrimm and Narid returned again, this time with Eklyre Temere in place of the fallen Sigismund, and once again they attempted to gain the upper hand through a surprise ambush on one of the hags. Success seemed out of reach before Narid struck Granny with an immense guiding bolt, taking her down and allowing the party to finish the hags off.