‘The Therions are gone,’ said Solaro.

‘I have to concur.’ Valerius’s voice was quiet, his face pinched with emotion. He darted a sideways glance at Branne and then returned his gaze to the primarch. ‘I hope their sacrifice will be remembered. I will provide a list of ranks and names when we have returned to Deliverance.’

‘They will be lauded, have no worry in that regard,’ Corax assured him. The primarch’s dark eyes glittered in the glow of the screens that covered the walls and station panels of the strategium. ‘Their loss will not go unremembered. Nor will it go unavenged.’

‘My thanks, Lord Corax,’ Valerius said with a deep bow.

A dull tone sounded from one of the main speakers.

‘Reactor energy spike, lord,’ said Ephrenia.

‘Reduce scanning array output to navigational,’ the primarch replied quickly. ‘There is nothing more we will find here. Adjust course to shortest route to translation distance, evasion pattern three.’

The black- and white-clad serfs moved to their control stations without word and within a minute the warning tone fell quiet.

‘Augur sweeps being targeted to our vicinity, lord,’ said Ephrenia, her words quick but calm. ‘Three frigates have changed bearing, moving ahead of our position. Monitoring increase in closed communications traffic.’

‘The traitors smell something amiss,’ said Corax. He strode across the strategium to join the controller and looked at the display screens. ‘Keep to plotted course. Reflex shield status?’

Ephrenia consulted a sub-screen before replying.

‘Masking is at ninety-nine point three per cent, lord,’ she told the primarch. ‘Should we slow down?’

Corax performed some quick calculations in his head, factoring the scanner ranges of the enemy vessels and the time required to get away.

‘No change,’ he commanded. ‘A little more speed will serve us better than complete masking. When we are two hundred thousand kilometres from the enemy, increase speed by twenty per cent. We should be at the translation point in seven days.’

The primarch looked again at the displays, seeing in his mind’s eye the dispositions of the enemy fleet. They had quickly thrown up a blockade position around the inner planets, correctly expecting him to have headed in-system rather than directly out of the star’s gravity well. Corax reminded himself that his enemies were commanded by Horus, one of the greatest strategists of the Imperium.

His traitorous brother knew well the capabilities of the Raven Guard, having benefited greatly from their expertise during his campaigns. They would have to be careful and take nothing for granted. The Raven Guard might have been pulled from the trap on Isstvan V, but they were still far from safe.

IN A DARKENED chamber close to the strategium of the Vengeful Spirit, a meeting was being held. The room was large, big enough for several dozen occupants to be seated, the light of the single great lantern hanging from the centre of the ceiling barely reaching the banner-hung walls. A few data stations blinked with ruddy lights on the far wall, beneath an embroidered standard depicting the Eye of Horus in gold on burgundy. The floor was plain plasteel mesh, scuffed to a dull grey by the countless footfalls of booted feet.

As the door closed behind Alpharius, the primarch’s eyes instantly adjusted to the gloom. The space seemed cavernous, occupied by only three others. Alpharius was surprised; he had been expecting several of his brother primarchs to be attending the council. As he stepped forwards he realised that this was not a war council, it was an impromptu interrogation. Perhaps even a trial.

The thought did not sit comfortably with him as he regarded the chambers’ other occupants with what he hoped was an impassive expression. Alpharius knew that he tested the patience of the Warmaster, and here at the heart of his lair there was no telling what he might do.

Horus, Warmaster, Primarch of the Luna Wolves – the Sons of Horus, Alpharius corrected himself – sat on a broad, high-backed throne, robed in heavy black and purple, hands on his knees. His face was heavily shadowed, eyes hooded with darkness with just a glint at their core. Even seated, the Warmaster’s presence dominated the room. Alpharius had spent time with Horus before – when loyal to the Emperor and since – and never before had he felt threatened. This time was different. Horus seemed bigger than ever.

Alpharius was the smallest of the primarchs, but had not allowed this to undermine his confidence. Now that he looked at Horus, tree-trunk-thick arms stretching the fabric of his robes, Alpharius realised that his fellow primarch could crush him, tear him limb from limb, without warning.

Their relationship had changed, that much was clear. The primarchs had once been brothers, equals. When Horus had been made Warmaster he had been treated as the first amongst equals. Looking at Horus now, Alpharius was left with no doubt that Horus considered himself master, a lord to whom fealty was owed. The obedience of his co-conspirators was no longer demanded, it was expected.

There was also no mistaking the Warmaster’s perception of his role in the coming meeting. He was the judge at a trial. His eyes remained fixed on Alpharius as the primarch walked to the centre of the room. The gloomy surrounds, the half-lit shapes at the edge of vision, were a crude trick, Alpharius told himself, only capable of intimidating lesser individuals. For all that, the primarch of the Alpha Legion felt a cold trickle of uncertainty creeping through his gut.

At the Warmaster’s right shoulder stood First Captain Abaddon, fully armoured and with a power sword at his hip. He had a look that matched his reputation: his hard eyes were those of a stone-hearted killer. At the Warmaster’s left was the Word Bearer Erebus, his armour painted a lavish crimson, adorned with golden sigils and hung with fluttering pieces of parchment covered with tiny scrawls of Lorgar’s meandering litanies. The Word Bearer leaned closer and whispered something in Horus’s ear, so quiet even Alpharius’s superhuman hearing could not detect it. The Warmaster looked sharply at the primarch of the Alpha Legion, eyes narrowing.

‘It would be unwise to take my name in vain, Alpharius,’ said Horus, fingers tightening with anger. ‘You claimed my authority and misled Angron and his World Eaters, allowing Corax and his Legion to escape.’

‘Perhaps your conversion to our cause is less than complete,’ added Erebus, before Alpharius could reply.

The Alpha Legion’s primarch held his tongue for the moment, quickly adjusting his demeanour in the face of Horus’s hostility. He stood in front of the Warmaster, helm under one arm, head bowed in obeisance, the picture of the diffident servant.

Abaddon put his hand to the hilt of his sword and growled.

‘Your duplicitous nature is well known,’ said the captain, teeth bared in anger. ‘The Warmaster saw fit to bring you into the light of his plans, I hope you have not made a mockery of his fair judgement.’

‘I seek to place Horus on the throne of Terra, the same as you,’ replied Alpharius, lowering to one knee in deference. It was an instinctive reaction, though such submission grated at the primarch’s pride. ‘If I acted out of turn it is only because circumstance forced me to make a decision quickly.’

‘I have not yet heard an explanation for your actions,’ said Horus.

The Warmaster’s gaze was piercing, as if trying to bore into the primarch’s mind to see his thoughts. Alpharius matched the stare without fear. Horus knew nothing of the Alpha Legion’s true aims. If he had any inkling of the part made out for him by the Cabal, Alpharius would already be dead. ‘I consider it a grave crime to usurp my authority, a crime compounded by the severity of the consequences.’

‘The Raven Guard have not yet been apprehended,’ said Erebus, a sneer twisting his lips. ‘Though but a shadow of their former strength, it was foolish to allow them to escape.’