Eidolon saluted and Fulgrim led the applause before turning and taking his leave.

Now he had to deliver on the second part of his pledge to the Warmaster.

Now he had to convince Ferrus Manus to join their great endeavour.

The beat of hammers and the pounding of distant forges echoed through the Anvilarium of the Fist of Iron, but Gabriel Santar, First Captain of the Iron Hands, barely heard them. The Morlock Terminators stood sentinel around the edge of the chamber, the mightiest of them protecting the gates of the primarch's inner sanctum, the Iron Forge. Rendered ghostly by the hissing clouds of steam that billowed from the deck, the fearsome visage of the Morlocks put Santar in mind of the vengeful predators that howled across the frozen tundra of Medusa for which they were named.

His heart beat in time with the mighty hammers far below, the thought of once again standing in the presence of two of the mightiest beings in the galaxy filling him with pride, honour and, if he was honest, not a little trepidation.

Ferrus Manus stood beside him, resplendent in his gleaming, black battle armour and wearing a glistening cloak of mail that shone like spun silver. His high gorget of dark iron obscured the lower part of his face, but Santar knew his primarch well enough to know that he was smiling at the thought of a reunion with his brother.

'It will do my heart proud to see Fulgrim again, Santar,' said Ferrus, and Santar risked a sidelong glance at the primarch of the X Legion, hearing a note of wariness in his master's voice that echoed his own feelings on the matter.

'My lord?' he asked. 'Is something the matter?'

Ferrus Manus turned his flinty eyes on Santar and said, 'No, not exactly, my friend, but you were there when we parted from the Emperor's Children after the victory over the Diasporex. You know that our Legions did not part as brothers in arms should.'

Santar nodded, remembering well the ceremony of parting on the upper embarkation deck of the Pride of the Emperor. The ceremony was to be held aboard Fulgrim's flagship, for the Fist of Iron had suffered horrendous damage when it had intercepted the Diasporex cruisers closing on the Firebird, and the Primarch of the Emperor's Children had deemed it unfit for a ceremony of such magnitude.

Though such a proclamation had incensed its captain and crew, Ferrus Manus had laughed off his brother's hasty words and agreed to come aboard the Pride of the Emperor.

Surrounded by the Morlocks, Ferrus Manus and Santar had marched through the ranks of elaborately armoured Phoenix Guard towards the waiting forms of the Phoenician and his battle captains. The march had felt like they were running a gauntlet of enemy warriors instead of the praetorians of their closest brothers.

In Santar's eyes, the ceremony had been concluded with unseemly haste, Fulgrim taking his brother in an embrace that was as awkward as their first had been joyous. Ferrus Manus must surely have noticed the change in his brother's mien, but he had said nothing of it upon their return to the Fist of Iron. A tightening of the primarch's jaw as he watched the 28th Expedition translate into the churning maelstrom of the warp had been the only indication that he felt slighted by his brother's coldness.

'You think Fulgrim still feels affronted by what happened at the Carollis Star?'

Ferrus did not answer immediately, and Santar knew that was exactly what was bothering his primarch. 'We saved him and his precious Firebird from being blown to bits,' continued Santar. 'Fulgrim should be grateful.'

Ferrus chuckled and said, 'You don't know my brother then. That he needed saving at all is unthinkable to him, for it suggests that he acted in a manner less than perfect. Be sure not to mention it around him, Gabriel. I'm serious.'

Santar shook his head, his lip curled in a sneer. 'Too damn superior the lot of them, did you see the way their first captain sized me up when we first boarded the Pride of the Emperor? You didn't have to be old Cistor to feel the condescension coming from them. They think they're better than us. You can see it in every one of their faces.'

Ferrus Manus turned to face him, and the full power of his silver eyes bored in on Santar, their cold depths chilling in their controlled anger. Santar knew he'd gone too far, and he cursed the fire within him that surged in him at the thought of any insult done to his Legion.

'My apologies, lord,' he said. 'I spoke out of turn.'

As quickly as Ferrus's ire had risen at his fiery words, it subsided, and he leaned down close to Santar, his voice little more than a whisper. 'Yes you did, but you spoke from the heart, and that is why I value you. It's true that this rendezvous is unexpected, for I did not request the presence of the Emperor's Children to aid us. The 52nd Expedition needs no assistance in defeating the greenskins.'

'Then why are they here?' asked Santar.

'I do not know, though I welcome the chance to see my brother again and heal any rifts between us.'

'Perhaps he feels the same and comes to make amends.'

'I doubt it,' said Ferrus Manus. 'It is not in Fulgrim's nature to admit when he is wrong.'

The great black iron gates of the Anvilarium swung open, and Fulgrim marched towards them with his flowing, fur-lined cape billowing in the heated gusts of air from the forges below. He stood for a moment at the chamber's threshold, knowing that to step across this line was to set foot on a road that might see him sundered forever from his closest brother. He saw Ferrus Manus with his first captain and chief astropath flanking him, the grim form of his Morlock bodyguards placed around the chamber's perimeter.

Julius Kaesoron, resplendent in his Terminator armour, and a full ten of the Phoenix Guard accompanied him to mark the gravity of the moment. When Fulgrim sensed the moment was right, he stepped into the dry heat of the Anvilarium and marched to stand before his brother primarch. Julius Kaesoron remained at his side, as the Phoenix Guard moved to join the Morlocks at the chamber's edge so that there was a purple and gold armoured twin for each of the steel-skinned Terminators.

The risk of approaching Ferrus Manus like this was great, but the rewards to be reaped upon the inevitable success of the Warmaster's ambition outweighed any doubts he might once have had.

The Warmaster had already begun the process of winning the other primarchs to his cause, and Fulgrim had promised that he could bring him Ferrus Manus without a shot being fired. Such was their shared history and bonds of brotherhood that Fulgrim knew Ferrus Manus could not fail to see the justice of their cause. The veil of lies had been lifted from Fulgrim's eyes, and it was his duty to reveal that lie to his closest brother.

'Ferrus,' he said, opening his arms to his brother, 'it gladdens my heart to see you again.'

Ferrus Manus embraced him, and Fulgrim felt his love for his brother swell in his breast as the primarch of the Iron Hands thumped his silver hands against his fur cape.

'It is an unexpected joy to see you, my brother,' said Ferrus, stepping back and looking him up and down. 'What brings you to the Callinedes system? Are we not prosecuting the foe quickly enough for the Warmaster?'

'On the contrary,' beamed Fulgrim, 'the Warmaster himself sends his compliments and bids me honour you for the speed of your conquests.'

He bit back a smile as he felt the pride of achievement fill every warrior of the Iron Hands in the Anvilarium. Of course the Warmaster had said no such thing, but a little flattery never failed to win over hearts and minds at such times.