The Darklight Sisterhood is Cheliax's answer to the Pathfinder Society. Because both Cheliax and the Society seek to acquire ancient relics and uncover lost secrets (though for vastly different reasons), the two are in constant competition. Pathfinders tend to receive more goodwill from locals throughout the world because of their reputation, but their Chelish counterparts don't get the same level of assistance. As a result, the Darklight Sisterhood was formed to counteract Pathfinder activity more covertly.