((I'll assume I'm the gold pony, since I... uh, am...))
Quill strolled about the town, which was a bit empty at the moment. She had assumed it must be around ten in the evening, but it was hard to tell when the sun and moon were fixed into place all the time. With a sigh, she looked back down at her flank, bare of the mark she was so proud of. After about thirty minutes, she'd decided to take a walk to clear her mind. But all it seemed to be doing was jumbling up her thoughts more. Where's my organized mind gone? Disappeared with my cutie mark? she wondered. That was the most she was able to think before she lost the thought. The unicorn kept glancing in the direction of the mountain. She was worried; Iron Strike hadn't come back for a while now. Suddenly, she heard a loud boom. Suddenly turning her attention to the mountain, she watched as it sunk, the earth swallowing the mountain and the tumbling debris. "Strike!" she shouted, breaking into a run towards the mountain.
After a few minutes, she stopped to take a breather. She hadn't even made it out of town. Now what? she wondered. Her thoughts were interrupted as she heard a shout from above her.
"You! Gold pony, you have to help me, there's a pony trapped in a cave in a mountain and the mountain sunk and he's trapped and I don't know how to save him... You have to help me!"
Turning, she saw a white pegasus with a light blue mane land near her as she rambled. Strike? she thought, now fearing for his safety. "Was this pony called Strike? You know what, it doesn't matter, I'll help!" She started running again, then skidded to a stop. "There's got to be a faster way there," she mumbled.