"There can be only one," Locke said again, looking at the pile of rubble that covered Aul's body. The Augur glanced toward his blaster, leaving it where it lay. Instead, he fished out the Striker pistol he also carried, aiming the weapon toward the rubble. Reaching out with the Force, he could detect life below the stones. Aul was still alive; if barely.
Accept your defeat, Locke thought, hoping Aul would choose the wiser option. They did not need to kill each other. The Savant's loss would have been an unnecessary blow to Sadow. True, Locke had fought hard, but that was necessity. He could not have gone easy on Aul.
He couldn't let the other man die, either.
Inhaling deeply, Locke absorbed the Force, keeping his pistol trained on the rubble. The Augur spread the Force through his free hand, reaching his fingers toward one of the blocks of stone. He twisted them, feeling weight against them as they pressed against open air. Tendrils of the Force pressed against the block as Locke pushed his strength against it. He winced, finally able to roll one block over. If he had used both hands, he might have been able to move it more easily, but these blocks were heavy.
Aul lay there, unmoving save for the slow rise and fall of his chest. Blood made a thick line on his face, while his drab clothing was darkened with blood near his abdomen. The Savant groaned and rolled over, slowly pushing himself up to his knees.
"You've lost," Locke said. "It's over."
The other man coughed up blood, splattering it on the ground, eyes still looking down. When he finally raised his head, they held a defiant look. Locke did not move, maintaining the distance between them. He recognized that look.
"Don't be stupid," the Augur continued. "Many have been in your position and died for their hubris. Don't join them. You have a future."
Aul's voice cracked as he looked up, speaking in a mere whisper. They were far enough up the temple's steps that it echoed off the walls, eclipsing the distant sound of rain. "I will not join them," he said, enunciating every word distinctly. "You tried to kill me."
Locke sighed. "I did only what I had to, but the Harrowing is over. Sang would not expect me to kill you."
"Oh no," Aul continued, his voice rasping, blood on his lips. "Are you sure? He told me to kill you after all." He had something in his hand. Locke recognized the small cylinder immediately. The Savant's lightsaber soon snapped to life.
Eyes widening, Locke stepped back, his slugthrower still trained on the other man. "I could have killed you," he said slowly. "I could shoot you at any moment. Don't be crazy."
"Sang said you could no longer be trusted," Aul continued. "He said you are a danger. You have to be killed."
Does he really think this of me? Does he really think he can still fight me? Locke wondered. His resolve would not waiver, not in the middle of battle. There was a time for reflection, but this was not it.
I should just shoot him. It might have been the wise decision, but something stopped the Augur from doing so. He saw that distrust in the other man - that look of anger and disgust. He truly believed that Locke was an enemy. If I just injure him, he will still never trust me again.
"Very well," Locke muttered. He lowered the pistol, aiming it toward the ground. "I mean you no further harm. Our contest is over."
Aul didn't move. He just looked at Locke for a moment. Then his arms wobbled and he collapsed, flat to his face, lightsaber clattering away.
"Aul!" Locke snapped. He approached instinctively, intent on helping his fallen comrade. The battle was over now, there was no need for-
Suddenly, there was a snap, as if the lid had popped off something. It was muffled, having come from under the other man's body.Then Locke inhaled and felt himself gagging, even though there was nothing there.
"What is this?" he coughed, feeling his muscles weakening. Locke stumbled away from Aul, finding it difficult to walk. "Aul! Was this you?" he said, voice uncharacteristically weak.
The Savant dragged himself to his knees, and then slowly to his feet. He was not walking steadily, but he was standing. At the same time, Locke tried to raise the slugthrower toward the other man. "Poison," he gasped.
The weapon fell from his grasp. He collapsed to his knees, focusing entirely on his own body. Summoning the Force, the Augur searched for a way to stop the spreading toxin. He embraced the dark side without care for it's impurity. He needed it to survive. He had to slow his breathing; slow the spread of the toxin. Locke's mind raced as he fought for his life.
"It's funny that you mention hubris," Aul said from somewhere above Locke's head. "You were resolute and self-assured to the end."
Locke tried to ask "why?". It came out as a croak as his voice failed. He coughed more, dropping to both his hands and knees.
Have to show them they can trust me. The thought slipped across his panicked mind. He wanted to laugh, but he could not. The Augur had been so focused on concluding the fight. He had been sure Aul was defeated. He had taken a risk in order to prove his loyalty to the other man.
And he had paid for it.
All thought left his mind as Locke focused on the Force and his organs. Throwing the dark side into each one, he tried everything he could think of to purge the toxin, to keep his body functioning through it's poison, but it was pointless. He lost each battle, feeling more and more sick as his body shut down.
Finally, Locke felt himself falling. Everything turned black.
Syntax
This is very awkward. Typically, their eyes would meet, rather than "met eyes".
His left what? This should really specify "side", even with the clarification of stomach after.
Double period here. Either that or you intended an ellipsis. Then you have a trailing quote without its mate.
"It" likes to be different. Unlike its peers, it doesn't use a comma to denote possession. That's a contraction of "it is".
Story
This story was a decent set up with a heavy helping of venue based attention. What I noticed most of all throughout was a somewhat monotonous cadence to the narrative. I'm not sure if it had to do with how you were structuring the sentences (in terms of length and flow, with lots of comma separation) but it definitely was noticeable.