After everything that happened down here, Indigo is a little reluctant to return to the tunnels. But she's not as off-put by the scenery as most folks here; she's been to flesh biomes before, this is nothing new (even if it does remind her of the Ruin a bit, and she has to quietly remind herself "It's just a flesh biome, not the Ruin" every so often).

But it does help that she has a project to focus on, to keep her mind off the creepiness of the surroundings... even it involves observing creepy surroundings very closely. With paper, pencil, and improvised clipboard in hand... she's making a map of Mementos. And since she serves as her own light source, she doesn't even have to monopolize a hand with a flashlight or lantern.

Every so often, she drops a random small piece of trash to serve as a marker of where she's already been; she wouldn't put it past this place to change its layout on her, and the markers will help prove that if it does, or find her way back if it doesn't and she somehow gets lost. Where there are tracks, she measures the relative lengths of the tunnels by counting the crossties; and after adjusting her stride to be the same length as between the ties, she uses her own footsteps where there are no tracks -- though of course, it's less accurate. If only she had some actual surveying equipment, so she could be assured of the accuracy of her map.