There's just a faint smile on his face in response as he checks the nearest corner in the tunnel. Even though the chill is still in the air, there's nothing there, and he starts making his way down this section of the cavern at his usual even pace.

There's only a quiet hiss as forewarning when the wraith phases through the wall behind him, laying one inky black hand on the back of Sato's neck.

It's a unique sensation, feeling the life being sucked right out of you, and Sato whirls around at the creature, firing the maser into it nearly point-blank. The shots pass right through the dark figure, etching a couple new holes in the cave wall behind it.

That... doesn't bode very well for success here.