Queen of Air and Darkness

The Queen of Air and Darkness is one of the members of the Seelie - a collection of Fey creatures who govern the denizens of the Fey with unmatched powers imparted by the Arch Fey Oberon and Titania. Known to be cold and solitary the Queen long ago lost her right to her true name and continues to have disagreements with the governing practices of the Seelie court. She has the appearance of a beautiful Eldarin woman with dark purple skin speckled with starlight.

During A Crown of Thorns team What Contract are transported to the Fey to find that she has started a war with the help of the Wild Hunt and a mysterious Red Plague and seeks to utterly destroy the Feywilds. It's not until much later is it revealed that she was under the influence of Gaiden Atrum who had manipulated her in order to provoke a reaction from one of the Architects and siphon their power. She was killed by Gaiden's plague but a fraction of her essence managed to survive inside of TK.