Arc 23The Gathering at Ullanor
The Emperor returned to the Golden Throne, while Maloghurst restored Horus by sacrificing himself and Mortarion fell to Nurgle through Typhon’s betrayal. At Ullanor, Lorgar and his allies turned on Horus, and Perturabo agreed to help Ahriman search for the missing Magnus.
- Magnus was captured and chained after the loyalist Primarchs defeated him, then placed on the Golden Throne so the Emperor could rise and face the coming war.
- The Emperor reunited with his sons, welcomed Curze back, and vowed to kill Horus himself.
- With Horus near death, Maloghurst used sorcery to reach his wounded soul and sacrificed himself to restore Horus, who ordered the rebel fleet to Ullanor.
- Lorgar gathered Fulgrim and other allies, while Typhon led Mortarion and the Death Guard into the Warp and delivered them to Nurgle.
- The rebel Legions assembled at Ullanor, where Lorgar ordered Fulgrim and Angron to attack Horus and the forces of several Legions clashed.
- Perturabo held back his Iron Warriors as Ahriman told him Magnus was missing, and Perturabo agreed to help find their brother.