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, Across from them, in the wall on the far end of the space, are three arches into more tunnels. Patrolling the openings are a number of humanoids, skeletons, and one larger creature.
DM: You back up into the hallway to find a space that isn't immediately visible and begin to build the circle of incantation. The rest of you keep watch in case anything begins to make its way toward the entrance. As you complete the ritual, your vision expands, and you feel your essence being pulled up through the earth and rock, changing from gray and brown to black and dead, until eventually, for a brief instant, you see a burst of the city of Thar Amphala, matching precisely your memory of the inner sanctum of the city. In an instant, there's a rush of momentum and energy, and you see footsteps. You see before you the death knight that you had previously encountered in the struggle is stepping up these dark, ruddy stone steps. One, two, three, you can hear the echo surround you in this slightly curving staircase.
Player: Do I see Delilah?
DM: You do not. Unfortunately, you see a very vague image of a room that's disappearing behind him as it curves around where you can see two other armored figures similar to the one that's in the center archway that are standing watch in that chamber. They vanish as he curves around, and you watch as he steps up, step-step-step.
Player: Can I get any other details on where he is? Can I see any other identifying landmarks?
DM: Currently it's a windowless stairway that curves.
Player: Is he going upwards?
DM: Yeah.
