This eerie and frigid plain of bones hosted the first meeting of the DDC and the Annis Hag known as Deadeye Alice, and was described as a neutral ground in the Feywild where deals could be offered. It was also within the boundaries of the territories of the Winter’s Knight, and offered a glimpse of the future he sought for their homeland.
There are two portals entering this space: the first marked by a swirling mist in a built up pile of bones in the north east corner, the second by an open grave beside the enormous cauldron eternally steaming in the south. Sullen red balefires illuminate the night, while a freezing river full of iceblocks divides the two sides. Several piles of skulls are stacked at irregular intervals, while blue crystals jut out here and there from the ground.
It’s a bleak place but allows two parties to arrive and leave through different means. Perhaps in your stories a great battle is held there, or something leaps out of the frozen waters to ambush explorers. Either way, have fun if you want to use it