Adventure Title
Night/Midnight/Shadow/Darkness of (the) Circle/Ring/Obelisk/Column

Alternate title
Ghost/Spirit/Specter of the Tower

Opening Scene
A lake or ocean that is Fathomless where they encounter Nobility that is/are Indifferent

Plot hook and draw
A close friend that is/has Sent a warning

Plot Concept
Gain control of a person or place that is motivated by Spiritual or (un)ethical beliefs

Primary Antagonist
A tribal chieftain who/that is Ambitious

Plot fulfillment and location
Willing sacrificial victims from A pirate haven