Achtung! Cthulhu 2d20 - Priority Mission 2: Season of the Snake 1 - Our Lady of the Eternal Sapphire PDF

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

In Our Lady of the Eternal Sapphire, agents are tasked with investigating a monastery located outside Cairo which contains a strange relic, the blue crystal skull of St. Barbara, which is said to have miraculous powers. But is the mysterious order of monks who inhabit the monastery as kindly and benevolent as they seem, and what secrets are contained within its secluded walls?

As the agents explore deeper, probing its many mysteries, how will they deal with both malevolent monks and the eccentric abbot and their hidden devotion to the Lurker at the Threshold? And who or what lurks in the honeycomb of tunnels which lie underneath this ancient edifice?


  • A ready made scenario featuring a malevolent monastery
  • Detailed locations and a colour GM map and to add atmosphere and flavour
  • Blank player map for desktop or digital play
  • Adventure seeds and inspirations for extending the experience and alternative play

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

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Customer Reviews

Based on 1 review
Björn Lippold (Mephisto magazine)
Secrets of an old monastery - a Mephisto review

The second Priority Mission for Achtung! Cthulhu revolves around an old monastery near Cairo, from which a brooch made of Blauer Kristall originates. The player characters are sent out to investigate the site and get to the bottom of the rumors about a relic in the form of a skull made from Blauer Kristall.

The second Priority Mission basically offers two pages of text and a map as source material. The setting is briefly described, and for the antagonists references are made to the rulebook. Again, there are several adventure seeds and alternate backgrounds, which the game master can choose to include additional or alternate enemies or give the mission an entirely different atmosphere.

Even though Our Lady of the Eternal Sapphire does not provide much concrete material, it presents an exciting setting and alternative backgrounds that game masters can easily use to entertain their players for one or even two game nights. I liked this Priority Mission because it offers some exciting ideas that can be used to develop larger story arcs.

(Björn Lippold)

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