Graia is a foundry world that produces Hellhound tanks for the Imperial Guard. Ten days ago an electrical storm formed over the main factory there and communication was lost. The next day a garbled message came through which suggested something sinister was going on underneath the veil of the storm. An Imperial Guard company was dispatched to the factory, but were knocked out of the sky by the storm. Another unit landed outside the storm and made their way in on the ground, but nothing has been heard from them. As the storm grows, the authorities believe a malevolent presence is behind it. Rather than let their factories be used by the forces of Chaos, they prepare to nuke the site from orbit. You are the last attempt to find out what is happening on Graia. Can you save the planet (and yourselves) from the darkness that lurks there?
Set in the Warhammer 40,000 universe, The Silence of Graia is an adventure using the Dark Heresy system. In a dystopian future where mankind must fight for survive in the darkness of the universe, the players take on the roles of investigators into what has happened on Graia.