CoC - The Thing at the Threshold

The Things at the Threshold is a non Chaosium Call of Cthulhu publication by Cthulhu House. It was released in 1992 and contains three connection scenarios forming a mini campaign. It was based off of the Lovecraft story The Lurker at the Threshold. I have not had a chance to play it so I can't really give any sort of feedback on how it plays.

From the back of the book:

"A dramatic chain of unsettling events over the past ten years leads to wholesale madness. A complete campaign in three chapters - detailed background for important characters - extensive, deluxe player handouts."

"The human brain can be divided into two halves. The left side contains our powers of reason. The right side holds our subconscious, and the potential for madness."