Impossibly colossal worm-like creature slumbering at the bottom the pit into the crypts of Briarstone Asylum. Simply seeing a small piece of it (in someone’s else’s memory) drove Dora mad in Chapter 17.
Referenced by Ratch Mamby in Chapter 18 as “blocking all passage” below Briarstone Asylum. According to the ratlings, none who see it survive, but this notion was challenged by Dora.
In Dora’s psychometry vision of Dr. Losandro’s office in Chapter 22, the party learned more about the moment when a botched occult ritual briefly woke it up on 17 Lamashan.
First Reference: Prologue
Other Notable References: Chapter 17, Chapter 18, Chapter 22