Changes

Battling the Thousand Sons on [[Demerium]], Titus and the rest of the Ultramarines under Acheron rendezvoused with Calgar, who congratulates them for holding the line. Together, the Ultramarines drive on the Thousand Thousands as Imurah uses Aurora to open a [[Warp Rift]], summoning a great [[Lord of Change]]. Titus and his squad are able to reverse the alignment of the [[Necron]] constructs powering the Warp Rift, causing it to weaken. Imurah and the Lord of Change flee into a new Warp Portal, unleashing a spell that freezes all the Ultramarines save Calgar, Titus, Gadriel, and Chairon. The four pursue Imurah and the Lord of Change, finding themselves inside the [[Immaterium]]. During the final battle against Imurah, Titus and his squad are able to finds Calgar and drive back the Lord of Change as Imurah attempts to use Aurora to imbue himself with the divine knowledge of the Warp. However midway through the process, Titus reverses the polarity of Aurora as Imurah imbues himself with it, causing his form to explode and forcing back the Daemonic tide.{{Fn|12f}}

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