Segmentum Obscurus, Heart of Hydra.
Boom!
Perturabo descended from the sky, his boots crashing into the center of Cadmean Castle.
His knees bent forward, absorbing the impact of the fall.
He held high a hammer as tall as an ordinary man, its haft forged from an indestructible unknown alloy.
Veins of lightning covered the hammer, and an amber saddle stone was set within the cracks of its handle.
The hammerhead was made of steel and pure gold, its bladed edges covered in spikes, its blade smooth and savage.
The Imperial Fists guarding the fortress saw a perfect opportunity to strike the badly wounded traitor and attacked the Primarch.
Perturabo swung Skull-Crusher, smashing it into an Imperial Fist. Blinding arcs of electricity blew him into a paste of bones and armor.
His cloak of interwoven steel leaves unfurled like a dragon's silver wings, its sharp scales slicing through the Imperial Fists' bodies.
Another Imperial Fist used his brother's corpse as a step and entered striking range.
The moment he swung his arm, Perturabo raised his right arm.
More than a dozen bolt rounds roared and exploded, tearing the Imperial Fist to pieces.
Perturabo swept his arm sideways, and the oncoming Imperial Fists' flesh and blood rained down in a crimson shower.
In the span of four breaths, thirty-five Imperial Fists lay dead upon the ground.
Perturabo strode forward, driving Skull-Crusher into the base of the barricade.
Boom!
The hammerhead's blade detonated the high-explosive bunker bombs, and dust swirled around the armor he had forged for himself.
The glow from his gorget pierced the dust, illuminating the dense cables above Perturabo's head.
The Imperial Fists' battle line, which had held firm for two months, met its end the moment the Primarch entered the battlefield.
A Thunderhawk gunship landed with a roar, with