It's a fantasy role-playing game.

DM: You are Percival de Rolo, a human gunslinger . You are the member of the famous group of adventurers. Previously, A couple of hours later, the ship comes upon an unnatural-looking fog bank in the ocean. Adella tries to veer around it.
DM: Yeah, you're fine. So you move around behind Trinket. All righty. That ends your turn, Vax. Percy, you're up.
Player: Okay, I'm gonna take a quick look around to see if I can figure out what's causing this fog because it's annoying me.
DM: Perception check.
Player: That's a 19.
DM: Glancing about in the area, it's hard to see, especially from this vantage point. The area is so heavily obscured with fog. You do glance and see what looks to be a very, very faint general glow in a lower area towards the edge of the ship. But that's all you can make out.
Player: Starboard? Port?
DM: It'd be on this side.
Player: All right. Somebody take a look at anything. There's a glow coming from the starboard side of the enemy ship. It's the one closest to our ship. We need to find out what's causing this fog. In the meantime, I'm gonna slowly make my way down a couple of the ropes. Is that an enemy right there? That guy?
DM: You're up here.
Player: Yeah, I know. I'm asking if that's an enemy on our ship, right there.
DM: This is an enemy right there.
