Okay, okay, I can't afford to panic here, gotta calm down. Let's think about this...whatever Monster this is, it's on its own, I don't sense any other Monsters in its vicinity. This lake isn't very deep, so based on what I'm sensing, it seems to be at the very bottom of the lake.
But what is this feeling, this cold chill down my spine...usually, when I sense a Monster with Thought Communication, it just feels like a target, and the only other thing I feel is what species it is, provided I've encountered said species before, of course.
This one's different though...I'm getting a seriously bad feeling from it, like it's something I really shouldn't be messing with. It's giving me the creeps. I've completed this quest already, so I don't need to risk it.