The Dunwich Horror

The Horror
In 1928, the event, which came to be known as the Dunwich Horror, occurred. A degenerate family named Whateley, who apparently worshipped the Old One named Yog-Sothoth, summoned an unknown creature by means yet to be revealed.

The creature, after apparently destroying the entire Whateley family, then went on a murderous rampage, slaughtering cattle and killing two families named Frye and Bishop.

In the end, the Inner Circle dispatched three of its members, professors from Miskatonic University, named Armitage, Rice, and Morgan, to Dunwich. They manage to stop the creature.

The records of the incident were then ordered sealed by the Dean of Miskatonic University. Therefore, exactly how the three professors stopped the creature remained a mystery, except to the Inner Circle itself.

Rex and Hannah in Dunwich
In 2015, Rex Buckland and Hannah Webster travelled to Dunwich to interview a descendant of one of the victims of the Dunwich Horror of 1928.

Alan Bishop, related to the unfortunate Bishop family, could not offer much information about the incident of 1928, as there were no longer any remaining witnesses still alive. All Bishop could tell the two former Warlocks were rumours that the Whateley family apparent worshipped the Old One named Yog-Sothoth.

This revelation was added to the information that Rex and Hannah had already gathered about attempts to free the Old Ones and those attempts being thwarted. This led to the eventual revelation of the Inner Circle to Rex and Hannah.