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// Devil In 
// Story: Book 1 - The Behemoth came to Canterlot 
// by Equimorto 
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"She's somewhere dark," Sweetie called out. She wasn't yelling, it was more her speaking loudly. Louder than her average, loud enough to be heard clearly outside the room. She didn't want there to be any misunderstandings. "I think it might be a cave, or something similar. I'm having trouble seeing her properly."
Twilight's voice came in through the small section of corridor that led from the door to the bulk of the room. She too was speaking at an above average volume, but not yelling. She had a composed tone, just made louder for the sake of being heard clearly. She did a better job at that than Sweetie herself. "Can you see anything about the cave that would help us identify it?" she asked.
"It's too dark," Sweetie replied after a brief look around. "But even if I could, it's probably because she's fairly deep in. She ought to be too far from the entrance for me to see anything that would help, unless you're planning to walk inside every cave there is. At that point you'd just run into her regardless."
"Even knowing what colour the walls are could still be helpful," Twilight said. "Knowing what the rock formations are like, if there's water or not, how tall and wide the cavern is. We have most of the tunnels mapped, we could compare the information and narrow things down." There was a pause. "Would turning off the lights help you see better?"
Sweetie thought for a moment. She wasn't sure if her eyes adjusting to a different level of light would actually help her see in a similar environment, but it was a possibility. "It might," she said. Just a moment later, the lights in the room went dark. Her vision slowly began to adjust, showing her the corners of the room more clearly in the darkness, and as it did so so too did the inside of the cave and the pony there become clearer to her, if just so much. It wasn't any more than what one could see in relative darkness, but it was still more than what one would get by looking into that darkness from a well lit place as she'd been doing.
"It did," she said, and she began to look more intently. "It's pretty narrow. Not too narrow, but more than a corridor. Not particularly tall either, not this specific spot at least. It's just fine for her, but an adult would need to duck down to pass here. I think there's some water on the ground, it doesn't seem to be flowing but I can't tell for sure. It's too dark to tell what colour the wall is, but I think it's a lighter tone. I can't see anything else worthy of note, not right now. She's not moving. She has something with her, on her back, it looks like a bag. It's dark, probably black fabric. She's looking down the cavern, I can't tell which way. She looks tired."