Shade of Decay
flesh is temporary

[Sith Temple ruins, unknown planet, Unknown Regions]
It wasn't that he was having trouble. He had all the necessary equipment to ensure his continued survival, alongside strength enough in the Dark Side to hold himself together. The cybernetic replacements he'd had to implant to make up for organs he hadn't managed to save were annoying, of course, but nothing he couldn't deal with. The frigid temperature of the planet he was one was also beneficial, as it helped slow the process of decay. There was nothing that was causing him undue difficulty.
It was just different, having survived onboard the Ebion for such a lengthy span of time, submerged in bacta nigh-constantly. Now, he was moving about an abandoned temple, one where the Dark Side of the Force was unusually strong, even compared to other Sith temples. It enabled him to act outside of the bacta tank more easily. Now he could conduct his studies in peace, and slowly re-acquire the equipment necessary to craft a new body. Barring the lack of such equipment, it even felt somewhat like his home on Arkania.
Not to mention that it was off all Imperial records, far enough from Sith space that he had little to fear about being found after what he'd done to Kascalion Giedfield. It was a fortuitous find, while he was running from the Sith Empire's retribution. Soon enough he could finish his body, discover the art to transfer himself into it, and return to the fold under an assumed identity. With time.
Time that, as the Sith Empire itself would have it, was likely running short.

