So THIS was Lord Bracknell? A smirk crossed his face. 
"I expected one of the Sith Lords to be a bit...taller." The Ubese trooper behind the young Knight raised the butt of his vibroblade, but Bracknell held out a hand, the weapon lowering as the Lord approached the duo, looking them both over before he spoke, a quiet assurance resonating in every syllable:
"You both have proven to be harder to dispose of than I imagined. A testament to your respective characters." His right hand clenched into a fist, prompting Yerbol's airways to close suddenly, a crushing weight exerted on his ribs. The Knight sunk to the floor, convulsing on the gleaming floor. 
"A shame you have to waste away. We could have used your power." Bracknell smiled at Aria, eyes almost twinkling before his fist uncurled, Yerbol gasping for breath. 
"I will make sure your father receives a swift death. No use in prolonging the inevitable, is there?" Before either one of the upstarts could react, the Ubese looming behind them delivered thundering blows with the hilt of their vibroblades at the base of their necks. As their bodies collapsed, Bracknell commanded:
"Take them to the holding cells. Ensure that they are engulfed by what is come." 

______________

When he finally regained consciousness, he was greeted by a ceiling composed of jet black metal with two lightbulbs emitting an apathetic yellowish light a few feet away from his direct line of sight. Groaning, he sat up, a throbbing wave of pain snaking down from the top of his spine to his tailbone. He waited for the pain to pass, then cast his eyes around the drab surroundings he found himself in. He was encased in a dark metal room with a thick door at the southern end and a porthole in the west corner. Clambering to his feet, he slowly ambled over to the window and saw thin streams of light hitting the sandy floor, finned creatures flitting across the vast expanse of submerged land. To the left was a gargantuan dome lined with tinted, heavy windows along with cylindrical passageways that connected the dome to other, smaller buildings.
"So we're underwater." He mumbled, sighing to himself as he turned around. 
"Ari?" He called out gently, wondering if sound could even travel through the cell he was placed in. Waiting for her response in passivity wouldn't satiate his desire to be free, so he began to feel the walls with his hands, hoping to find some sort of structural weakness or flaw he could exploit. Of course, if he DID find one, who's to say it would lead to a part of this assumed base? The door might be the only safe way out. 

When he reached the door in question, he pushed as hard as he could, swearing at the top of his lungs. It was thick, too thick for his utilization of the Force to even make a dent in it. There was no key hole, no slot for a keycard or even a slat under the door to peer under. He could only hope that his companion was in a better position than he was...