A cult devoted C’tha Ftheemal (aka, The King in Yellow).
Formed when the outer god first made contact with an elven Wizard named Exethanter in the Svallich Valley region. The cult grew in numbers adding 5 more powerful elves to it’s numbers.
The Fangs infiltrated the royal Von Drovis family of Leddig Slatte during the Great Northern War and manipulated the Leddig Slatte efforts in the conflict to escort themselves to the front lines of the conflict where they conducted a powerful necromantic ceremony, unleashing the power of their patron and raising vast armies of the dead that laid waste to the region.
Following the end of the war, the Fangs faded into obscurity and legend, although their legacy of undeath remained to taint the Barovian Steppes and the Forested Eastern Shores of the Outer Sea.