The Grail Society are a well-financed group of Christians who believe that the Blood are the lost descendants of Christ. According to them, the Grail Society has been appointed by God to shepherd the Scions of His son. They believe that a great war is coming among the Blood that will leave just one alive, and that that last Blood will be the second coming of Christ.
The Grail Society has connections in both the Church of England and the Catholic Church, though some members belong to other Protestant faiths.
Their primary goal is to track, and, where possible, to convert, as many of the Blood as possible.