The Sinking of C'thagn

From publisher blurb:

"The damned and blasphemous city of C’thagn is risen from the depths of the ocean. Regurgitated by the frothing waves, long since tired of its noisome aura.

This contemptible citadel was not constructed by human hands, as is evident in its abhorrent architecture,

Yet it is humans now who walk down its fetid streets."

This adventure is an 8-panel, A2 sized map (double the size of the Dark Caribbean map included with Pirate Borg 1st Printing). In the original (physical) edition, the map is on the front and all the adventure panels are on the back. This electronic edition is in PDF format.