Source: Vengeful Spirit

I should be dead. He breathed in sulfur hot fumes. Fyceline, scorched metal, burning flesh. Hearing damaged. A deadening numbness filled his head with dull echoes. The rasping of a saw. Thudding detonations. He didn't need his visor display to know how badly he'd been hurt. His armor was battered, but unbreached, though his skin was burned to the bone, his scalp scorched bare. Temperature warnings, oxygen deficiencies, organ damage. He shut them out with a thought. Clarity. He needed clarity. Shadrak Meduson! Autonomic reactions took over. Time and motion became gel-like as Horus pushed himself to his feet. He swayed, concussive shockwaves making him dizzy. How bad did it have to get for a primarch to get dizzy?