Host and Hostility is a collection of three one-to-one scenarios for Call of Cthulhu, making use of the Regency Cthulhu sourcebook. The scenarios range from weird science to high-mythos. Each scenario is written to be run in a single 2-4 hour session.
Loom and Lucidity: A dashing but mysterious naval captain has taken Brighton by storm this Season. Where did they come from and what is the source of their fortune? And why did Lord Cosgrove drop dead as soon as he spoke against the gallant Captain? Intrigued by such an enigmatic person, the investigator accepts an invitation to a soirée in London with the highest of high society in attendance. There she will be have to battle to keep her wits about her as madness reigns.
Curate and Curability: The investigator is introduced to a young clergyman who is a widower, mourning the loss of his late wife. An invitation to his house in a secluded county village follows, but is there more to the draughty old vicarage than meets the eye? And what really happened to his wife?
Note and Notoriety: The investigator is invited to the ball of the season hosted by renowned aristocrat Sir Jasper d’Ulfrey. The lavish parties of Sir Jasper are known to all, and the guests are the envy of the ton. Little do they know that Sir Jasper has grown weary of his hedonistic existence. With the help of some of the more dubious books in his library he means to make this, his final grand ball, a night to remember...
- from the publisher's blurb