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[quote=@Renny]Eventually his guilt urged him to become involved with the ongoing investigation, that he was at first, hesitant to assist in. His fear of this gaunt man, draped in a too-large robe of black, was palpable in the Force. And yet, oddly enough, it also became the catalyst for change. Back on Kiros, with a handful of Jedi Knights and a singular Master, Byleth found himself speaking out during the investigation. Guiding them along their path to the cove with an expectant, yet calm demeanor. A part of him wanted nothing more than to see this being again. This man with shiny black-skin and a red lightsaber. This man who had infected his Master with some Force Disease. This man who possibly had the cure. 

At once, the Master staid his steps at the entrance. He wobbled slightly and mentioned a shudder in the Force. Byleth was quick to remind them of his Master's awkwardness at the beginning of the battle. [b]"Guards up, Jedi."[/b] The Master was no slouch, certainly not foolish, and above all else, he was cautious. 

It was terrifying to step back into the cove. Like stepping back into a nightmare, only this time Byleth was prepared. The gaunt Dark Sider rose to his feet and again Byleth remained a few steps behind the others, lightsaber ignited and trembling. Again that nausea echoed through him. The Jedi seemed unaffected... at first. Very quickly it became apparent that the Knights were slipping, making mistakes that led to two of their deaths. The Master was holding up well, beating back the Dark Sider until he was desperate enough to take a hostage. 

Byleth was held prisoner by the glow of his bloody blade. The horrid stench on the Dark Sider assailed him with each of his panicked breath. [b]"Let me be, Jedi! Do that and this welp livess. Move an inch. We both die."[/b] His voice was dead, coarse and quiet. 

There was moment between the Master's reply, hard to detect, that he pleaded sternly, through eye contact, for Byleth to defend himself. [b]"What are you? Sith?"[/b] 

That plea calmed his mind for a second, just long enough for him to realize who and what he was. He was Byleth Tes, a Jedi Padawan, strong in the Force but weak when it mattered. When the situation required grit, he usually folded. Not this situation, he decided. It was mystical, a serene whisper in his heart but he knew it to be the Force. It showed, not with images but intent and feeling, what needed to be done. 

Byleth directed his palm towards the Dark Sider and exerted. It was only a stillness that lasted a single moment but the Master had noticed it and quicker than was thought possible, acted. He sped forward, stabbing his blue lightsaber through the Dark Sider's skull. The blade sung so close to Byleth's ear that it stole that sense for several minutes. 

The Master explained on the way back to Coruscant that Byleth's latent ability was both rare and powerful; Force Freeze was its name. It spoke on the soft nuance with which the Padawan used the Force. It also appeared that the Force Disease was directly tied to the skeletal Dark Sider. With his death, the remaining Knight and Master found its effects fading. That gave Byleth hope, that the eight standard-days it had taken to defeat his Master's adversary was worth it. 

When he returned, that hope was dashed. The Force had been stripped of his Master, that was the last stage of the disease, an irrevocable detachment from the Force. It killed one's Midi-Chlorians, depleted them. If not for them slaying the Dark Sider, it would have eventually killed all infected. In the end Master Elda Beh was 'released' of his duties as a Jedi. That singular outcome carved Byleth inside-out for a time, he never even said his goodbyes.[/quote]

So this is the conclusion to Byleth’s interaction with the Dark Side wanderer. I like it. the story came easy enough and I was actually kinda surprised. Hopefully, it satisfies your critiques from earlier.