On the agri-world of Oremor, at the very fringes of the Malfian sub-sector, acolytes of the Inquisition and their allies must confront a sinister conspiracy that threatens to shake the very foundations of the Calixis sector.
For untold centuries the Deathwatch have stood vigil over the Jericho Reach. Now, the disparate Astartes of Kill-team Umbra must vanquish a threat and unravel a mystery which portends to place the entirety of the Achilus Crusade in jeopardy.