The turn of the knob immediately pulled his emerald eyes towards the door, his spine straightened ever so slightly as the man was met with the surprised features of the vampire that he so sought out. "Hey..." He responded in a voice just as quiet.
He offered her a warm, weak simper as he stepped into the quiet flat. It was almost awkward now, the space that existed between himself and the female vampire. He had largely kept his distance from the flat, his disagreement with his sister and the sheer existence of her children had been enough to keep him from the apartment. It was that and the simple fact that he'd refused to return to Isolt without her wish in hand. His attention remained steadfast upon the auburn haired vampire, even though she attempted to explain his sister's absence. Gently, the man shook his head, dismissing her concerns all together. He knew all too well that his sibling and her children would be asleep. Or, at least, he had desperately hoped that their sleep schedule was more akin to that of their human counterparts then those that nocturnal kittens held. Tonight was supposed to be about Isolt, something he wasn't going to let his sibling ruin....although knowing her she would have put forth some effort to push the topic further, her latest obsession seemed to be somewhere between teasing him about women or trying to force one upon him.

"No, no, I uh...came to see you." He paused with a hint of hesitance, his gaze gauging the woman's reaction. Although his memories of that night were hazy at best, there were a few moments that stood out even for him. Her request being one of them. "I got you something." He stated simply, his fingertips reached into his jacket pocket to pluck out the small darkly colored bag. The weight of the black velvet was enough to keep the light from the vial from spilling out into the dark space. The small bag dangled from his fingertips, swinging upon two large ropes as he offered it to her. A part of him had to admit he was proud for procuring such a difficult present, his abilities as a smuggler had improved significantly since he'd first taken the Ark. Without hesitance he lowered the soft material into her pale hand, his own hands immediately shoved into his pockets afterwards as if to make an effort to appear far more lackadaisical then he felt. Still - his time with Risque had caused the man to master some facade of indifference, one in which he employed even now.

"I was told it lasts for an hour and twenty minutes. She advised against direct sunlight though, something about decreasing the longevity of it. She guaranteed it's effectiveness though." He commented, failing to mention exactly what said guarantee meant, much less the fact that he had threatened to kill the young witch if her potion failed and the vampire somehow came to harm by the sun's rays. "You don't have to use it now..or anything...I just...wanted to give it to you." Tetradore hardly wanted her to feel forced to use the potion with him present, after all she had a life that extended far beyond his brief interventions. For all he knew, maybe she had tied some sort of knot with that vampire friend of hers, or maybe another man had walked into her life. Either way, it was hardly his place to demand such from her, his smooth baritone voice instead falling silent despite the intensity of those vibrant eyes upon her.