Forbidden Lore

Grenada Reconquest- Pyrenes, 3rd moon of Grenada- Pyrenes Campaign-  A shocking discovery was made as the Skitarii came upon a bound daemonhost  in a locked room.  The thing hissed and began to murmur promises of knowledge, to hint of lost tech and to reveal secrets knowing it's words would be relayed via vox to the tech priests of Mars.  Indeed some demanded the daemon host be spared in order to glean knowledge from it about the enemy.  But others took a different view and ordered the entire are with the daemonhost to be destroyed and the Skitarii that had come into contact to be stood down and terminated.  Which was what ultimately happened.

Later imperial intel and Inquisition agents theorized that the Stygian Empire may be using Daemonhosts as oracles in order to predict and intercept Imperial operation against the chaos pocket empire.