It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, Many of the townsfolk gathered at that square were immediately killed. The party, as well as a few other straggling survivors, ran away as both the gargantuan black and green dragons began to chase  them  down.
DM: As you look down at the skull, which you guys still can't get through because Grog's holding the door, and you don't have a visual in there because he's holding it pretty close to completely shut. As you look down, you can see now in the gem, formulating in the middle of it, this swirl of a face that comes right up to the front. You can see in the midst of its coloration these energy-based eyes and grin, a toothy grin that goes, "I wish to be freed. That is all. I've been here far too long. I grow tired. I want to finally pass."
Player: Are you Vecna?
DM: You hear a chuckle. "No. Vecna has been long gone. I am not a being of such power."
Player: Can I insight check the fucking thing in the eyeball?
DM: Sure, make a insight check.
Player: Sure, no problem. Unless it was a natural 20, it doesn't matter, 15, no.
DM: 15, you don't.
Player: No. Way higher than 15, 21.
DM: Okay. 21, thank you.
Player: 22, I can add.
DM: 22, okay, that's way higher. You take a look at it, but due to the fact that it's mostly hidden, there aren't facial tics and there aren't normal gives to what a person's intent is, and even the tone of voice itself is spectral, ominous and otherworldly. You have a hard time being able to read whether or not it's being honest or lying or anything in between.
