Sephiroth had also covered his face somewhere in the crook of his elbow as the slab of rock had collided with the wall and erupted all sorts of rock dust into the close air. Slowly he raised his head from it and cast a careful look around in the darkness, the haze from Jennifer's mog-lantern floating like an iridescent misshapen orb of light nearby as she caught up to the group. He waved his hand at her, which followed with that light being extinguished as well. Better to have naturally adjusted low-light vision than the lanterns in the haze they were left in, a pity however that adjustment would take a few moments; given human limitations.

The crunch sound immediately pulled Sephiroth's sharp attention from others, back in the direction of the archway. What he wouldn't give for the superhuman senses that he'd once taken for granted, those clicks certainly don't sound like a machine of any sort...but then that led to trying to guess what manner of creature they were about to encounter.

"...curious sound." He mused lowly, ensuring to keep his voice as low and quiet as possible.