Once the Old One Cult nearly completed a spell from "The Nameless Book", they were taken down into a mountain to the Temple of the Old Ones. They finished the spell and the book awakened Yibb-Tstll. He emerged from the pit in front of the temple to lay waste to the world. Luckily, Big Trouble was utilized to defeat Yibb and the mountain collapsed onto the temple.
- ↑ Egon Spengler (2009). The Real Ghostbusters - "Russian About" (1990) (DVD ts. 15:48-15:51). Time Life Entertainment. Egon says: "They probably are. It's one of the Old Ones' secret hiding places."