Anyone hear the cuss word in the trailer?

In the trailer for The Gorgon, about half-way through, there is a scene at the castle where the narrator seems to be saying something like: "for over 2000 years the Gorgon has kept her evil PISS..." I replayed it 3 times to see if it was hiss, but no, there is a distinctive P-. What else could he be saying if not piss?

"Cum Grano Salis"