The Tanagran troops were on the verge of collapse when Nemiel and the reserves arrived. He ordered the APCs to halt fifteen metres back from the melee so the three squads could deploy in good order. The Redemptor looked across the battlefield at the fearsome, pale-armoured warriors. There were four full squads against his three under-strength ones; he and his men were in for a rough fight.

Igniting his crozius, Nemiel led the charge. 'Loyalty and honour!' he cried. 'For the Lion and the Emperor!'

Brother-Sergant Kohl took up the war cry, and in moments all twenty-three of the Dark Angels were shouting too, as they crashed into the ranks of their foes.

Nemiel saw a rebel warrior cut down two screaming Dragoons and then turn upon him. He rushed at the Son of Horus, channelling all of his rage into a sweeping blow from his crozius. But the veteran warrior sidestepped the blow with fearsome speed and slashed the Redemptor across the wrist. Had it been a power blade, the sword would have sliced off Nemiel's hand; as it was, the teeth of the chainsword raked across his armoured gauntlet, scoring deep gouges in the ceramite plates.

The Redemptor lashed at the rebel with a backhanded stroke, feinting for the warrior's head and then striking downwards at his knee. Again, the Astartes nimbly dodged the blow and then brought up his bolt pistol and shot Nemiel in the head.

The blow to his helmet blinded Nemiel and knocked him off his feet. He registered the impact across his shoulders as he struck the ground and felt blood trickling down the bridge of his nose. The bolt pistol round had failed to penetrate his helmet, but the impact had split it and damaged the delicate circuitry beneath the ceramite plates. His vision came back in flashes of red-tinged static just as the edge of his enemy's chainblade pressed against his breastplate. He felt the whirring teeth skip and screech across the curved plate, scrabbling for purchase. In another few seconds he knew that it would mar the surface enough to bite deep, and then he was as good as dead.

With a shout, Nemiel brought up his pistol and fired a shot into the side of his opponent's knee. The bolt round punched through the relatively weak joint armour and blew the warrior's lower leg off. The Astartes collapsed with a roar of pain and rage, and Nemiel threw himself atop his foe, batting aside his chainblade with the barrel of his pistol and slamming his crozius down on the warrior's helmet. The helm imploded with a bright blue flash, and the Son of Horus went limp.

Gasping Nemiel tore at his damaged helm one-handed until he finally pulled it free. A pitched battle was raging all around him; the Dragoons were nowhere to be seen, leaving his warriors to fight the numerically-superior Sons of Horus alone. Pistols flashed and thundered, and blades drew sparks as they slashed across the curved surfaces of power armour. He saw a Dark Angel take a shot from a plasma pistol at close range and fall to the ground, then another lose his arm to a deadly lightning claw. A rebel Astartes toppled, run through by Brother-Sergeant Kohl's power sword. Brother Ephrial smashed a rebel to the ground with the butt of his meltagun and blew the prone warrior apart with a searing blast of microwaves. The heat generated by the blast staggered everyone around him - all except the pale-armoured warrior who had slipped behind Ephrial. Brandishing a huge power fist, the Son of Horus punched Ephrial in the back of his head, killing him instantly.

Nemiel leapt to his feet and charged at the warrior who'd killed Ephrial. A plasma bolt shot past his head, close enough to sear the skin on the side of his face, but he scarcely felt the pain. He raised his crozius, and the rebel seemed to sense the blow at he last moment. The warrior spun about, bringing his power fist up in a ponderous arc that nevertheless managed to deflect Nemiel's attack. The rebel spun on his heel and, quick as a viper, brought up a plasma pistol and loosed a bolt at Nemiel, but the Redemptor anticipated the move just in time and dodged to the side. The shot missed his shoulder by centimetres, flashing past and striking someone behind him. He heard an agonised scream, but had no time to see whether friend or foe had been hit.

He lunged forward before the traitor could fire another shot, and smashed the pistol's barrel with a jab from his crozius. The Astartes hurled the ruined weapon at Nemiel's face, following behind the feint with a sweeping blow aimed at the Redemptor's abdomen. Nemiel dodged to the right, narrowly avoiding both attacks, and brought his crozius down on his enemy's left shoulder. The warrior's pauldron shattered beneath the impact and broke the traitor's shoulder along with it. The Son of Horus was driven to his knees. Before he could rise again the Redemptor crushed his skull with another blow from his power weapon.

Nemiel whirled about, taking stock of the battle even as his last foe toppled to the ground. Everywhere he turned he saw pale-armoured figures pressing in on his warriors from all sides. Bodies of friend and foe alike littered the ground, but he could see at once that his warriors had suffered the worst in the exchange. There were less than a dozen left, including Brother-Sergeant Kohl and Brother Cortus. The Dark Angels were instinctively drawing together into a tight knot, standing back-to-back in a classic defensive formation that had its roots on Caliban. They were outnumbered more than two to one, but they refused to yield a centimetre to their foes.

For the first time in his life, Nemiel truly felt that he was about to die. A strange peace settled over him at the thought, and as he joined his brothers he prepared to give his life for the Emperor.

Then, suddenly, a shout went up from the Sons of Horus, and the entire mass of enemy warriors recoiled away from the Dark Angels. Stunned, Nemiel whirled about, searching for the source of the enemy's retreat.

Lion El'Jonson fell upon the rebels with a fierce cry, the Lion Sword blazing as he carved through the enemy ranks. The rebels fell like wheat before a scythe, cut down before they scarcely had a chance to move, much less strike at their foe. Jonson was a vengeful god, a whirlwind of death and destruction, and the Sons of Horus retreated before his wrath.

The enemy fell back to their Rhinos, firing their pistols to cover their withdrawal. The Dark Angels traded shots with them until the enemy had disappeared inside their transports and the Rhinos turned and sped out of range. Only then did Nemiel turn and take stock of their losses. With dawning horror, he saw that only eight warriors besides him were still standing. Fifteen of his brothers lay dead upon the permacrete, surrounded by the bodies of a dozen of their foes. They had turned aside the enemy attack, but the reserve force had been decimated.

If the Sons of Horus launched another attack, there would be little left to stop them.

The Dark Angels had taken a terrible toll on the enemy, but they had paid an equally terrible price in return. The Sons of Horus had slain many of their battle brothers, but even worse was the horror of spilling the blood of fellow Astartes, something utterly unthinkable just a few scant months before. Out beyond the perimeter they could hear the rumble of engines, and sensed that the enemy was re-forming for yet another attack. Jonson took stock of his remaining forces and reluctantly ordered his remaining warriors back to the inner defensive line.

Nemiel was summoned by the primarch as he and his squad were helping carry the most gravely-wounded brothers into the assembly building. There were only sixty warriors still standing; Force Commander Lamnos lay in a coma, his primary heart and his oolitic kidney ruptured by an autocannon blast, and Captain Hsien had been killed when his position had been struck by a battle cannon shell. The Tanagran Dragoons had died to a man fighting the Sons of Horus; Nemiel had found the body of Governor Kulik surrounded by his troops, his sword gripped in his hand.