Cult of Petosega

The Cult of Petosega seeks to bring demons from the abyss into the world. Working in secret beneath the Manitou Tavern, their leader Calloway worships a strange stone known as the Petosega Stone, which speaks secrets of the abyss to him.

Meanwhile, the bard Tori Fald stopped into the Manitou Tavern to earn a bit of coin. Calloway was enraptured by her and has made her his prisoner, playing music there until the Cult unleashes their demonic hordes upon the land. 

Are the characters up to the task of rescuing Tori Fald and defeating the Cult of Petosega? A Fifth Edition Fantasy adventure for 1st level characters.