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Achtung! Cthulhu - Mysteries of the Manor PDF FREE!


Horror at a Stately Home!

Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session, plus a set of seeds to provide inspiration for further adventures.

Strange events are occurring at Raynethorpe Hall in East Anglia, where Lord Edward Dowling, a renowned collector of antiquities, his family and staff have been captured by a Black Sun strike team. 

With the Black Sun forces barricaded in and ransacking the house for the powerful ancient Tome of Mephisto, agents are dispatched to free the lord, release his staff and prevent a dangerous Black Sun Canon accomplishing their mission. 

Mysteries of the Manor is a covert insertion mission requiring courage and daring where the main aim is to rescue innocents caught up in the of the ancient stately home. 

However, as All Hallows Eve approaches, a bunch of Halloween Horrors are ready to be unleashed on the sleepy East Anglian countryside, and things are about to take a turn for the decidedly more deadly! 


  • A ready made scenario featuring a classic stately home mystery location
  • Detailed locations and a colour GM map to add atmosphere and flavour 
  • Blank player map for desktop or digital play
  • Adventure seeds and inspirations for extending the experience with the Halloween Horrors!

Requires the Achtung! Cthulhu 2d20 core books to run.

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Reviews (2)
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April 9th, 2024
A (inter)mission in the countryside - a Mephisto review Mysteries of the Manor To accompany Halloween Horrors 2, Modiphius has released another short mission, this time under [...]
March 29th, 2024
A pretty straightforward romp through a small stately home to make a rescue while the evil nazis try and stop you. Pretty useful for learning the combat rules and not very taxing to set up at all. [...]
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109.06 MB
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File Last Updated:
October 30, 2023
This title was added to our catalog on October 31, 2023.