SECOND FILTER.
You and Sabrina may know, but please don't pass it further than here, not even to our coven contact: it's called the Morrigan Grail. I don't know anything more than when it was first referenced and its supposed relation to our age-old favorite of blood magic. Given that it's a Vallo legend, I have concern that even casual gossip may reach hostile ears, and I'd prefer to keep this effort small due to sensitivity.