The Maiden's Blood Sisterhood is a compact of hunters that first appear in the book Night Stalkers. A secret society for college women similar to the Skull and Bones, they also happen to be hunters of vampires.
History
The Sisterhood has its origins, most appropriately, in the Seven Sisters of the Ivy League. In 1957, a Wellesley professor, Agatha Brewer, learned several of her students were being preyed upon by a vampire. Only after gathering select faculty and students were they able to make a stand and rid themselves of the bloodsucker for good. Realizing that this was not the end of the troubles with vampires, the group, with substantial financial backing from generous student and alumni, created an established sorority dedicated to keeping their campuses safe from the creatures of darkness.
Purpose
Spread across several hundred college campuses, the Sisterhood is a loosely-organized network of secret societies, each dedicated to protecting their campus and the men and women in it from the creatures of darkness. By day, the groups are any ordinary sorority, helping out the community, but by night, they actively hunt down any threats to the college and local populations.
Organization
Started on a single campus, the Sisterhood continues to grow and spread. While the focus remains on youth and universities, there are members who have successfully survived and graduated, and have achieved recognition and positions of power in several fields, and are gaining footholds of influence in places that can help them further their cause.
While the group focuses on vampires and does not have issues with taking out other creatures of darkness, they do maintain an odd sort of respect for witches after a "witch hunt" resulted in the death of an innocent student. There are several rumors that many members, including a few high-ranking ones, are witches themselves.
The three major chapters of the Sisterhood are directly responsible for the daily operations of the group. The Pleiades are the national representatives and mediators of the group, the Amazons are the front-line fighters against the supernatural, and the Graces provide the support for the Sisterhood's more charitable works.
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