Descent Into Darkness Season 2 Episode 16

"When I found the book I was searching for I opened it, and to my relief, the first page identified it as the Liber Ivonis. While I was staring at the book in my hands in disbelief a piece of paper that may have been used as a marker in the book fell to the floor. I immediately noticed the signature at the bottom of a short letter. It was from Mr. Merriweather." - Lance Monroe, June 16th, 1921