'The fight will be held before the proper planetary authorities, both secular and holy,' said Leodegarius. 'In order for the Judicium Imperator to mean anything, it must be witnessed. As to what has happened since your incarceration… We will speak of it if you survive.'

On that grim pronouncement, they followed Leodegarius into the centre of the parade ground and Uriel saw many familiar faces gathered to witness the fight. Cardinal Togandis sweated beneath his ceremonial robes of office and Daron Nisato was resplendent in his gleaming black enforcer's armour.

Leto Barbaden was seated on a tall podium, looking simultaneously bored and angered by the proceedings, despite the fact that the fate of two of humanity's greatest protectors was to be decided before his very eyes.

Leodegarius halted before the podium and gave a curt nod of acknowledgement to Leto Barbaden before turning to Uriel and Pasanius.

'Governor Barbaden, these two warriors have passed through the trials of purity as determined by my order and I present them before you that you might bear witness to the Emperor's judgement upon them. No higher authority than the Emperor exists and thus He will have the final say in their fate.'

Uriel blinked in surprise at the Grey Knight's choice of words, recognising in them an implicit threat that Uriel's fate was not Barbaden's to decide. Had the governor demanded their execution in the last few days? Given their previous dealings, it was not beyond the realms of possibility, but Leodegarius's words suggested that such a decision was not Barbaden's to make, not when the Grey Knights were involved.

The Adeptus Astartes stood apart from the rigid hierarchy of the Imperium in a way that some found distasteful, but the Grey Knights were an authority beyond even the autonomy of most Chapters. Their authority was absolute and no one who valued their life would dare to go against their dictates.

It seemed that Leto Barbaden was no exception to this, and Uriel could see that it sat ill with the governor to have to bow before the authority of what he no doubt saw as interlopers.

Barbaden nodded and said, 'These two have brought nothing but trouble to my world, but if your order decrees this combat to be a just and proper trial then I will bear witness to it.'

Uriel hid his amusement at Barbaden's transparent ill-grace, meeting his hostile gaze and returning it with one of his own. His dislike for the governor of Salinas had intensified the more he learned about him. Barbaden's disregard for human life and his actions during the conquest of Salinas were unconscionable and Uriel knew that his crimes must be addressed in the fullness of time.

Leodegarius turned to him and said, 'Follow me to the place of battle.'

Uriel nodded and both he and Pasanius followed the Grey Knight to the centre of a circle that had been etched in silver, like the protective one carved in the stone chamber where he had undergone the ordeals, albeit this was considerably larger. Grey Knights in power armour took up positions around the circle, the shimmering blades of their tall polearms crackling in the sunlight.

'We fight hand-to-hand, no weapons,' said Leodegarius, 'the two of you against me.'

'That's it?' asked Pasanius.

'What more did you expect?'

'I don't know,' admitted Pasanius. 'I just thought there would be a lot more… ritual.'

'Rituals are for heathen corpse-whisperers and sorcerers,' said Leodegarius, assuming a fighting pose. 'I prefer more direct action.'

Uriel let his mind and body slip into the rhythm of combat, allowing his metabolism to speed up and heighten his senses and reaction times.

'So what are the rules?' he asked.

'You are such an Ultramarine,' grinned Leodegarius, launching a thunderous jab at Uriel's face. The Grey Knight's fist was like a steel piston, bludgeoning Uriel backwards as though struck by a dreadnought.

Blood arced from his split cheek and stars exploded behind his eyes at the force, but Uriel had been hit before and he knew how to ride with the pain of impact. He lowered his shoulder and rolled his neck, twisting his head out of the way of Leodegarius's follow-up hook.

His arm came up of its own accord, blocking a right cross and he launched an uppercut into his attacker's torso. His other fist slammed into the Grey Knight's side and he heard a satisfying whoosh of breath. His burned hand was bathed in fiery heat, the flesh split where it had not fully healed, but Uriel pushed the pain to the back of his mind.

Pasanius swung with his left, but Leodegarius easily dodged the off-balance blow. Leodegarius's elbow hammered into Pasanius's side and his fist slammed like a club into his midriff, driving the sergeant to his knees.

Uriel surged forwards, his fist arcing towards Leodegarius's head, but the Grey Knight had been expecting his attack. With a speed that seemed impossible for such a huge warrior, Leodegarius swayed aside and seized Uriel's wrist. He pivoted smoothly and slammed his hip into Uriel, using the momentum of the charge to hurl him from his feet.

The ground came up hard and Uriel slammed into it with pile-driving force. The breath exploded from his lungs and he looked up in time to see a slashing foot descending on him. Uriel rolled aside as the heel smashed down and split the stone. He twisted to his feet as Pasanius took another punishing blow to the head.

Uriel shook his head clear of the ringing impact with the ground and spat a mouthful of blood. He knew he had underestimated his opponent's resolve. Leodegarius might have wanted to show that they were innocent, but he wasn't about to compromise the integrity of the Judicium Imperator to get his way.

Leodegarius turned from Pasanius as Uriel circled around to his left and the cheering soldiers looked on. The officials of Salinas watched the fight with studied interest, but the soldiers of the Falcatas were showing no such restraint. Uriel risked a quick glance down at Pasanius, who reeled on the ground, as though still dazed from the blow to the head.

Uriel caught a glimmer of guile from his friend and reversed his circling, bringing Leodegarius back closer to Pasanius. The Grey Knight glanced down, unconcerned, at the groggy, struggling form of Pasanius as Uriel feinted left and punched right.

The blow caught Leodegarius on the shoulder, not hurting him, but putting him off balance for the briefest of seconds. Uriel quickly followed with a series of high jabs, one of which penetrated Leodegarius's defences to open a cut above his right eye.

A slashing riposte thundered into Uriel's jaw, but he had seen it coming. He let his guard drop a fraction and Leodegarius stepped off lightly to deliver a crushing blow.

Before the blow landed, Pasanius pushed himself onto his side and delivered a slashing, scissor kick to Leodegarius's leg, just above the knee. Pasanius's foot was like a steel club, hammering the Grey Knight's peroneal nerve and chopping the leg out from under him.

Leodegarius collapsed and Uriel surged in, pounding his fists against the warrior's face, hating the fact that he was drawing the blood of an Imperial hero, but knowing that he had no choice but to fight with all his strength.

He drew back his fist to strike again, when Leodegarius surged to his feet and slammed the heel of his left hand into Uriel's solar plexus. Almost in the same motion, his right chopped down on Pasanius's neck.

Pasanius gave a strangled cry of pain and his eyes rolled back in their sockets.

Uriel staggered back, struggling for breath as his diaphragm went into spasm and pain from the strike to his solar plexus almost blinded him. He could not draw air into his lungs.

Leodegarius rose to his feet, like a colossus from the depths, and Uriel was amazed that he had recovered so quickly from Pasanius's strike. A blow of such power would have shattered the leg of a mortal warrior and rendered even a Space Marine immobile for several minutes.