He scowled, unable to see the maid but assuming that she would approach. While he could have spoken, the majority of his attention was focused on keeping his spell ready. He heard the old lady walk down the hall, and prepared himself for a fight. While he preferred to not have to resort to violence, it was seeming more and more likely as she talked.
The moment she shot at Krenth, a large wall made of the aforementioned shadowy energy appeared in front of him. Though it appeared to be made of jet-black smoke, it stopped the bullet as easily as if it was made of solid metal. In fact, nothing could go through it, at least not until it was broken.
Because he had finally cast the spell, it did not take as much energy to maintain as it did to keep it on hold. Knowing that, Krenth was able to speak without having to worry about the spell failing. "I have done no such thing. As for your threats...you will do nothing. I welcome you to try, but Narophne can tell you what happened the last time someone tried to kill me."
Though the wall was not massive, it was large enough to separate himself from the angered maid and Naro. He did not attack, not wanting to waste his energy killing the maid. It did not show, but his actions were finally starting to take their toll upon his mind and body. He could theoretically go on for hours, but the continued casting of spells and fighting had drained a good chunk of his...well, energy. He was only human, and empowered or not, humans need rest every now and then. So, he attempted to negotiate. "If you would lower your weapon, perhaps we could speak like civilized people!" After a brief pause, he added one final thing. "Or, you could suffer the same fate as that fool, Viktus!"