The glow intensifies steadily as Kaz speaks, responding unmistakably to something in his manner or behavior, like the rise of dawn fast-forwarded.

And when Era's voice joins afterward, when she offers her name, abruptly the carvings make a sharp jump in brightness, like a flare lit in the dark. This seems to trigger more motion in the hidden mechanics of the stone, rumbling, clicking, a faint shudder in the ground underfoot. The door begins to move.

It's hard to say if Aymeric and Vanyel's self-introductions do much for the door, or if the process is already at work. Certainly, there's yet another degree of brightness to the door when the Elezen speaks, and the mildest change with Vanyel.

The door slides open, rather than swinging wide. Beyond, there's a vast, cavernous space. When the group had been outside, it had seemed the mountainside was solid. Yet from in here, there's sunlight coming through an enormous hole in the ceiling, and a single tree descending down through it, a pool of water gathered below. Across from them, around the water and in the gloomy distance, there are five tunnels.