The Master of Mankind

As Horus' rebellion ignites turmoil across the galaxy, a hidden conflict brews beneath the Imperial Palace. The Custodian Guard, along with the Sisters of Silence and Mechanicum forces, strive to secure crucial nexus points of the ancient eldar webway, now overrun by daemonic entities following Magnus the Red's intrusion. Faced with the growing threat of traitor legions and corrupted Battle Titans, the situation grows increasingly dire, with only the Emperor possessing a hope of salvation for Terra.