The guard of honour followed at a measured pace behind their wounded brothers, who passed slowly by the waiting ranks of Dark Angels and then took their leave, headed for Aldurukh's extensive medicae wards. Israfael halted the guard of honour before the assembled Astartes and with a murmured command ordered a sharp about-face. Twelve boots crashed down in unison on the rain-slick permacrete and every warrior stiffened to attention. Rain drummed against Zahariel's hood, plastering it slowly to the top of his shaved head.

Across the landing field the assault ramp on the Stormbird lowered with a faint hiss of hydraulics. Ruddy light spilled down the ramp, casting a long, martial shadow onto the scorched pavement as a single, armoured figure emerged into the stormy night.

At just that moment, the driving rain slackened and the howling wind receded like an indrawn breath as Luther set foot on Caliban once more. The former knight was clad in gleaming armour of black and gold, forged in the close-fitting Calibanite fashion rather than the larger, bulkier Crusader-pattern suits favoured by the Astartes. A curved adamantine combat shield bearing the insignia of a Calibanite wyrm was strapped to the knight's upper left arm, while his right pauldron bore the winged sword insignia of the Emperor's First Legion on a dark green field. On Luther's left hip rode Nightfall, the fearsome hand-and-a-half power sword gifted to him in happier days by Lion El'Jonson himself; in a holster on his right sat an old and well-worn pistol that had seen much use in the monster-haunted forests of Caliban. A winged great helm concealed the knight's features and a heavy black cloak swirled about his feet as he strode swiftly to the assembled warriors.

Every eye was upon Luther as he came to a halt precisely twenty paces from the Astartes and surveyed their ranks with glowing, implacable eyes. Though he had been given many of the same physical augmentations as Zahariel and the rest, Luther had been too old to receive the gene-seed as they had. They towered head and shoulders over him, and yet his sheer physical presence seemed to fill the space around him, making him seem far larger than he actually was. Even Israfael, a Terran by birth, seemed slightly awed by Jonson's second-in-command. He was the sort of man that came along once in a thousand years, a man who might have united all of Caliban but for the appearance of another, even greater figure: Lion El'Jonson himself.

Luther surveyed the Astartes for a moment longer, then reached up and drew off his helm. He had a handsome, square-jawed face, with strong cheekbones and an aquiline nose. His eyes were dark and piercing, like chips of polished obsidian. His hair was black as jet and cropped close to his skull.

Thunder rumbled off to the south and the wind began to pick up again, blowing a curtain of cold rain across the landing field. Luther turned his face to the heavens and closed his eyes, and Zahariel thought he saw the ghost of a smile play across his face as the drops struck his cheeks. The precipitation grew into a steady, pelting shower once more.

Zahariel watched as Luther took a deep breath and glanced back at the assembled troops. This time his grin was broad and comradely, but Zahariel saw that the smile didn't reach all the way to Luther's eyes.

'Welcome home, brothers,' Luther said, his powerful speaking voice carrying easily over the rain and the wind, and eliciting rueful chuckles from the Astartes in the front ranks. 'I regret that I can't promise you a grand feast, such as welcomed the questing knights of old. If we're lucky and we're bold, perhaps we can stage a quick raid on Master Luwin's kitchen and make off with some fresh victuals before the day's work begins.'

Many of the Dark Angels laughed at the thought, remembering Luwin, the roaring tyrant of the kitchens at old Aldurukh. Zahariel chuckled in spite of himself, thinking back to his days as an aspirant and remembering fondly the halls and courtyards of the fortress. For the first time since leaving Sarosh, he found himself looking forward to seeing Aldurukh again.

Before the laughter could entirely subside, Luther tucked his helmet under his right arm and nodded to his honour guard. 'All right,' he said. 'Let's go see how much the old rock has changed in our absence.'

Without another word, Luther turned on his heel and set off for the landing field's access road, his shoulders straight and his head held high. Immediately his honour guard fell into step behind him, and then moments later the pavement resounded with the thunder of hundreds of armoured feet as the rest of the cadre began the march to the distant fortress.

Luther marched at the head of the column like a conquering hero, returning to Caliban in glory rather than exile. It was an impressive performance, Zahariel thought, but he wondered if any of his brothers were fooled by it.

Officially, they had been ordered back to Caliban because the Great Crusade was about to enter a new operational phase, and the First Legion was in dire need of new recruits to meet the tasks the Emperor had planned for them. The Lion declared that experienced warriors were needed at home to speed up the training process, and a list of names was drawn up and circulated throughout the fleet. Little more than a week after being deployed on their first campaign, Zahariel and more than five hundred of his brothers - over half a chapter - discovered they had been dismissed.

The news had stunned them all. Zahariel had seen it in the eyes of his battle brothers as they'd mustered on the embarkation deck to begin the long trip back to Caliban. If the Legion needed warriors so badly, why were they being pulled from the front lines? Training recruits was a job for elders, men who were full of wisdom but past their physical prime. That was the way it had been on their homeworld for generations - and it had escaped no one that virtually all of the Astartes being sent home were from Caliban rather than Terra.

Ironically, it was the announcement that Luther himself would take charge of the recruitment effort that convinced them something was wrong. Luther, the man who had been Jonson's right hand for decades, and who had risen to become the Legion's second-in-command despite not being an Astartes himself, had no business leaving the Crusade to train young recruits at Aldurukh. He was being sent as far from the Lion as possible, and the rest of the cadre were being exiled along with him.

They followed their orders to the letter, without question or hesitation, as they had been trained to do. But Zahariel could see the doubts that had taken root inside each of his battle brothers. What did we do? How have we failed him? But Luther gave the Astartes little opportunity to speculate; once the Wrath of Caliban entered the warp he established a rigorous regimen of equipment maintenance, combat training and readiness drills that kept spare time to an absolute minimum. To all intents and purposes, it appeared that the Legion's second-in-command took the primarch at his word and intended to fulfil his assigned task to the best of his ability. When he wasn't taking an active role inspecting wargear or supervising combat exercises, Luther spent the rest of his time secluded in his quarters, drafting plans for overhauling the training practices at Aldurukh.

Zahariel was kept as busy as the rest, although he quickly found himself exempted from the more mundane aspects of the shipboard inspections and readiness drills in favour of training his psychic powers under the tutelage of Brother-Librarian Israfael and acting as Luther's unofficial aide-decamp.

The order had come down shortly after the voyage began. Luther required an assistant to help draft the orders for the new training scheme and organise the ongoing activities aboard ship. He had chosen Zahariel personally for the job. Most assumed that he'd chosen the young Astartes because of their shared exploits during the Saroshi assassination attempt aboard the primarch's flagship, the Invincible Reason. They were correct in their assumption, but not for the reasons they imagined.