The resident vampire had chosen to speak. That was noble of him, considering Mithias was an armed intruder in his very home. It would have been dishonorable for Mithias to sneak in like a coward and kill a vampire in his or her sleep, but he was not bound by honor. Religion and codes were for the faithful and proud, for the young, misguided, and controlled. Mithias had discarded those illusions long ago. Reality was not bound by such childish rules. All was fair when it came to survival.

Honor was for a soldier, but Mithias was a hunter. As such, his mission was to kill swiftly, efficiently, and mercifully using whatever means necessary. Hunters did not warn their prey. They got the job done and vanished without ever being seen. Glory never tainted their silent victory. A hunter prized strategy and efficiency to take down powerful prey, and if such prey left itself vulnerable, then it was fair game. 

By all rights,  Klaus would have been justified in taking Mithias' head at the first opportunity without warning. Mithias knew this and was ready for it. It would have been the smart thing to do, but that didn't necessarily mean it was going to happen. Mithias was aware of something crucial. He knew that, as time passed, vampires all eventually come to suffer the same curse that plagues high immortals, curiosity. Unless he made himself an immediate threat, there was a good chance he wasn't going to be attacked, even when trespassing into the heart of a coven.

Mithias turned slowly to face Klaus, who could see that the lower half of the intruder's face was masked by a black cloth, but memorably striking, vivid golden eyes shone from underneath his hood. Those eyes held no malice or fear, and were almost disturbingly unreadable, as if they were the eyes of an animal. The aura around Mithias was that of a vampire, yet something about its timbre echoed to Klaus of vampires of old, familiar in a way, yet causing him an undeniable level of concern. ...could he admit that it was fear? 

Mithias beheld the creature staring at him in the doorway. He was a beautiful, yet rugged blonde young man when he was turned. He looked quite human, aside from his piercing, annoyed gaze and fangs. Mithias could only guess at his true age, but he had no desire to test the man. "Forgive me." He said, placing a hand over his chest and bowing. He stood with his hands at his side, keeping his eyes on Klaus. "I had to investigate my would-be enemies for myself. I would speak with your Lady Kingston."