It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, They are brought to meet Flamespeaker Cerkonos, the headmaster of the tribe. Cerkonos confirms that you's mother, Vilya, came through about ten years ago on her own aramente.
DM: You all move together into the Cindergrove forest, pushing through the hardened, blackened tree trunks to the left and the right of you. The actual floor of the forest, what appears to be piles and piles of burnt-away brush, ash, and whatever else once was considered life amongst the boughs of these trees when they grew there. Eventually, you find your way to the center of the forest, and you can see now the source of these molten rock sprays. There is a large crevasse bisecting the center of the forest, about 35 to 40 feet across and about five feet wide that is a pool of slowly roiling lava. You can see the actual air around it is heavily warped by this intense heat that's being released, and all the trees that are immediately around it are all warped and bent and have been burnt to near lack of recognition. Standing there, amongst the edge of it, is Cerkonos with his arms crossed, trained on you, Keyleth. You see occasionally a couple of bubbles (lava bubbling) in the lava behind him, and even his form is shifting from behind as the air itself ripples and changes. He looks at you and says, "Sit. Focus. Ask permission."
Player: I do as he says.
DM: Go ahead and make a wisdom check. Roll a d20. Add your wisdom bonus.
Player: 27.
DM: 27. As you sit down and close your eyes, you begin to focus your mind towards the center of this mountain, the heart of the fire that gives it its life, and as you all watch, a minute passes of silence before suddenly the ground shifts again and you can see the lava begin to grow more and more active, sending off little spittles of rock.
Player: I push it out and continue to focus.
DM: You guys begin to see now the lava is shifting and beginning to roil and you're almost afraid it's going to start bubbling over and fill the area, and this nervousness grips your heart. Especially you, Vax, who had previously had some unhappy run-ins with molten rock. It's a genuine fear that you hadn't quite acknowledged since that moment, and you begin to feel really uncomfortable being this close to this opening. As you continue to focus, you hear Cerkonos's voice again, calm and methodical. "Ask permission." I'd like you to go ahead and roll a nature check.
Player: 19.
DM: 19. (rock scraping) The ground shifts again. You can now watch the lava. Strangely enough, it's beginning to billow upward but not spill over the edges of the crevasse. It's actually slowly circling. You hear this strange sucking sound, almost like sludge is being pulled through a tube, and the lava beginning to slowly spin and spin. Cerkonos is still-- the back of him you can only imagine is either burnt to a crisp by the sheer proximity of the heat, but he is unmoved.
Player: I push it out and continue to focus. Just focus and meditate on asking permission.
DM: "Keyleth of the Air Ashari. Ask permission!" Go ahead and roll one more wisdom check. d20 plus five. This time, with advantage.
Player: Oh my god, I rolled the same thing twice. Wisdom, five. 18.
DM: 18. At this point, you guys notice one final shift of the ground, and the trees actually crack, and you see bits of broken branch and tree begin to fall and hit the ground around you. The air is beginning to pick up, and even though you try and cover your face the ash is still pushing through and your eyes are starting to hurt. You feel suddenly this blockage, this tension, like the mountain was fighting you, give way. And in that moment you (gasps) breathe in and open your eyes, and you all notice that the lava that has been slowly circling now (whoosh) pulls down into a vortex that disappears into the crevasse and is now a spinning whirlpool of molten rock in the crevasse, as Cerkonos still stands there. Cerkonos now steps aside and seems to vanish from your sight in but an instant, his voice lingering in the air, saying, "Now, you may enter." Looking down, you lean over and you can see this slow spiral of molten rock. It seems to disappear 15 to 20 feet below, you cannot see the bottom of it, and when you try and lean forward the heat is so intense that you have to close your eyes; you're forced to. There is a leap of faith here.
Player: Before I leap down, I cast Protection from Flame on myself? Or Protection from Energy, and I'm going to use fire.
DM: Which gives you fire resistance?
Player: Gives me fire resistance.
DM: Okay, good to know. And then... Keyleth?
Player: I close my eyes and let myself fall.
DM: You guys watch as Keyleth steps forward and tumbles off the edge, into the vortex of molten rock. (whoosh) She's gone.
