Frankly, Nuva couldn't say he was particularly aware of what "the Invocation of Kazi-Nercht" was. One might describe his upbringing as "sheltered", after all... if one were being polite. In franker terms, he had practically no personal knowledge of magical invocations beyond what effects he'd observed from the gnome mage who had hired him on as a bodyguard of sorts for several years, never mind dark magic of any sort, and this in spite of having lived in a place where it ought to be somewhat common. Whatever was happening in there may as well be meaningless jargon to him.

He did, however, understand the intricacies of urgency in a person's voice. Preparing both his weapons to be bloodied again, he found himself almost annoyed with the second kick the human enchantress- Cassilda, if he'd heard correctly- took to remove the door from its hinges, but did not have time for additional thought on the topic. Charging into the room and past Cassilda, he found himself aiming to sweep a gory path round the circle of men, mace swinging to try and crush bones and bludgeon bodies aside, and the spiked arm ready to block any blades or bolts coming toward him - seven men for the ritual itself, twelve along the outside of the circle, and one cultist at the center, so the chances that his first kill would be one of those actually enacting the ritual were half and half, getting much better with every consecutive kill, and he reckoned once one cultist fell, the whole ritual could well come undone entirely. Projectiles weren't necessarily too much of a threat, either: contrary to popular belief, chainmail made with fine enough links is a very sturdy defense when layered over leather, and though in his case a lucky bolt may well have had a chance to penetrate through the holes in the links, he reckoned the speed he was moving at made that somewhat unlikely. Even so, he found himself instinctively glancing round as he moved, always checking his surroundings, as he'd been taught to do to make sure he was not blind-sided, and so ready to avoid or block otherwise-lethal attacks. He'd failed at that once already, and nearly gotten a sword to the back for it; he certainly didn't want a similar failure in awareness to kill him now.