Solomon drove his roaring blade through the chest plate of the warrior before him, twisting the weapon savagely as it tore through the layers of ceramite, flesh and bone. Blood sprayed from the ghastly wound and the traitor crashed to the tiled floor. He spun painfully to find another opponent, but the only figure left standing was Lucius, his scarred face flushed with the energy of the battle. Solomon checked to make sure there were no survivors before finally lowering his sword and acknowledging the pain of his many wounds.

Blood dripped from his sword as the whirring teeth slowly wound to a halt, and he took a deep breath as he saw how close they had come to being overwhelmed. The skill with which the swordsman had despatched his foes bordered on the miraculous, and Solomon knew that Lucius's reputation as the deadliest killer in the Legion was entirely justified.

'We did it,' he gasped, painfully aware of how dearly the victory had been bought. All the warriors under Lucius's command were dead, and as Solomon surveyed the carnage, he felt an immense sorrow as he saw that there was little to tell traitor from loyalist.

But for a twist of fate, might he too have turned on his brethren?

'We did indeed, Captain Demeter,' smirked Lucius. 'I couldn't have done it without you.'

Solomon looked up at the supercilious tone and bit back an angry retort. He shook his head at the swordsman's ingratitude and nodded wearily.

'Strange they came with so few warriors,' he said, kneeling beside the body of the last traitor he had killed. 'What did they think to gain?'

'Nothing,' said Lucius, cleaning the blood from his sword with a scrap of cloth, 'yet.'

'What do you mean?' demanded Solomon, fast growing weary of Lucius's obtuse answers. The swordsman's smiled, but didn't answer, and Solomon looked away, taking in the dead bodies and the stench of seared flesh and bone.

'Don't worry, Solomon,' said Lucius, 'it will all soon become clear to you.'

The smug gleam in the swordsman's eyes unnerved Solomon more than he cared to admit and a horrific, gut wrenching suspicion began to form in his mind.

He quickly looked around the dome, his eyes darting back and forth as he did a quick count of the bodies that lay silent and unmoving on the cratered floor. Lucius had been given the remains of four squads to defend this portion of the palace, some thirty warriors.

'Oh no,' whispered Solomon as he realised that there were around thirty corpses. He gazed at the battered armour plates, the blackened faces, and the damage that told him these warriors had not come fresh from their billets to attack the palace, but had been here all along. These dead warriors were not traitors at all.

'They were loyalists,' he whispered.

'I'm afraid so,' said Lucius. 'I am going to rejoin the Legion. The price for that is allowing Eidolon and his warriors a way into the palace. It was most fortunate you arrived when you did, Captain Demeter. I do not know if I would have been able to kill them all before the lord commander arrives.'

Solomon felt the walls of his existence come crashing down as the enormity of what he had done sank in. He dropped to his knees, and tears of horror and anguish spilled down his cheeks.

'No! What have you done, Lucius?' he cried. 'You have doomed us all.'

Lucius laughed and said, 'You were already doomed, Solomon. I just hastened the end.'

Solomon hurled aside his sword in disgust at what he had become, a killer no better than the traitors beyond the palace, and his anger at Lucius surged like a molten river.

'You took my honour from me,' he snarled, rising to his feet and turning to face the swordsman. 'It was all I had left.'

Lucius was right in front of him, that cocky, arrogant smile still plastered over his scarred features. The swordsman smiled and asked, 'How does it feel?'

Solomon roared and flew at Lucius, wrapping his hands around his foe's neck. Hate and remorse flooded his limbs with fresh energy to better strangle the life from this thief of honour.

A terrible pain erupted in his stomach, tearing upwards through his chest, and Solomon cried out as his ruined frame fell away from Lucius. He looked down to see the glowing blade of Lucius's sword protruding from his breastplate. The sizzle of burning meat and melting ceramite was strong in his nostrils as Lucius thrust his sword completely through his torso.

The strength fled from his body, and all the agony of the injuries he had fought to overcome since the firestorm returned a hundredfold. His entire body was a mass of pain, his every nerve-ending shrieking in agony.

Solomon dropped to his knees, his blood and life pouring from his body in a hot rush. He reached up to grip Lucius's arms, and fought to focus on the swordsman's face as death reached up to claim him.

'You… will… not… win…' he gasped, each word forced from his throat a small victory.

Lucius shrugged. 'Maybe, maybe not, but you won't be around to see it.'

Solomon fell backwards in slow motion, feeling the motion of air across his face and the crack of his skull against the hard floor. He rolled onto his back, looking out through the cracked dome to the clear blue sky beyond.

He smiled as the pain balms of his armour struggled uselessly to alleviate the mortal wound Lucius's blade had done to him, staring into the limitless expanse of the open sky and feeling as though his gaze might reach beyond the atmosphere to where Horus's fleet hung in space.

With a clarity denied him in life, Solomon saw where the Warmaster's terrible betrayal would inevitably lead, the horror and the long war that would surely follow. Tears spilled down his cheeks, but they were not shed for his own ending, but for the billions who would suffer an eternity of darkness for the sake of one man's dreadful ambition.

Lucius walked away from him, not even bothering to watch his final moments, and Solomon was glad of the peace. His breathing slowed and his eyelids flickered as the sky grew darker with each breath.

The light was dying with him, he thought, as though the world marked his passing by drawing a curtain across the day and ushering him into the final darkness with honour.

Solomon closed his eyes as a final tear fell to the ground.

The Iron Forge had become Ferrus Manus's refuge since the monstrous betrayal visited upon him by his once-brother. Its gleaming walls were cracked, the primarch's hurt reaching out to destroy the things he held dear in fury at the treachery given voice here. Gabriel Santar stepped over weapons and armour strewn acrosss the floor, many pieces twisted as though melted in the heart of a fire. He carried with him a data-slate with fresh news from Terra. He hoped that it would lift his primarch out of the anger fuelled depression that had settled upon him like a shroud in the wake of the traitor's scheme to sway the Iron Hands to the cause of treachery.

Every artificer, forgemaster, Techmarine and labourer had worked unceasingly to repair the damage done to their ships by the surprise attack of the Emperor's Children fleet, and, in an unbelievable time, the ships of the 52nd Expedition had been ready to make for Terra and bring warning of the Warmaster's perfidy.

In this, however, they had been stymied as the ships' Navigators and astropaths had been unable to penetrate the warp, monstrous storms of terrifying force erupting through the depths of the immaterium, preventing any contact with or from Terra. To venture into the warp while it raged and seethed with unnatural vigour was tantamount to suicide, but it had taken all of Gabriel Santar's calming words to break through Ferrus Manus's towering fury and persuade him to await the end of the storms.