Descent Into Darkness Season 2 Episode 2

"I have come in contact with them before, back when we sought information on the Corbit house. Once they had what they wanted, the Liber Ivonis, they fled into the shadows and haven’t shown their faces again. Or so I had hoped, as the death of Mr. Dooley might be linked directly to them." - Johann Muller, June 12th, 1921