With the future of the Sabbat Worlds campaign balanced on a knife edge, new hope arises in the form of Saint Sabbat herself, reincarnated to lead the Imperium to victory against the dark forces of Chaos. The living saint calls for Colonel-Commissar Gaunt and the Tanith First to be her guardians. Doubting that she is who she claims, Gaunt must discover the truth while fending off enemy troops and lethal assassins. But treachery within the Ghosts will not only threaten the mission, but will rip the Tanith asunder.

Read it because

It's the culmination of a massive story arc that sees tragedy strike even as the Sabbat Worlds Crusade is given new hope with the reappearance of the Saint herself. Mysticism and warfare collide, with compelling results.