Two days before…
Amy was really quite concerned about the engines. Ever since the rough landing on planet X-248, they sounded a bit… off.
She woke up early that morning to clank around under the grating in the control room. Just as she was soldering two rather fiddly wires together, the alarms went off.
"Bloody hell!" she swore, throwing down her tools and dashing up to check the scanner. "I landed in a nice, quiet place. Would the universe really implode if I had a quiet day for once?"
The TARDIS hummed, as if warning her not to jinx herself. Sometimes she wondered… but no. It was just a machine. It couldn't be sentient. She was just spending too much time in her old blue box alone, that was all.
"Soon as I'm done here, I'll go visit a nice star cluster," she promised herself. "There was that pretty girl on Kalypsastearun. I might drop by there and visit her."
Focusing back on the task at hand, Amy read the information on the scanner, a concerned frown on her face.
"Oh, that is no good," she muttered. "No good indeed."
She heaved a reluctant sigh.
"Well, I guess I'll have to go check this out," she grumbled to her machine. "It's probably best not to let a fire-breathing lizard run loose around the outskirts of London."
The TARDIS landed near a sign for a school - Coal Hill something-or-other, Amy didn't have time to catch the whole thing - just as the fire alarms went off.
"Bloody hell," she said again, snatching her newly enhanced sonic screwdriver she had been using off the console and running outside. At the door nearest her, a young woman with dark hair - probably a teacher - was directing students toward a safety point.
"Go to the top of the hill!" Amy heard her shout as she drew nearer. "I'm going to go back inside and look for more people to help!"
The students took off and Amy started following their young teacher back into the building. Thank heaven she had thought to bring a partial face mask to protect her from the smoke. The woman she was following didn't seem to have done any such thing. She was staggering down the hallway in front of Amy, calling out for students. Amy rushed forward to catch her just as she collapsed.
'Oh, God. What do I do now?' she thought as she cradled the unconscious woman in her arms. She couldn't very well leave her there on the ground - she'd probably burn to death. But if she tried to carry her back to the TARDIS the school would likely be nothing but a cinder when she got back. Finally she pulled another mask from her pockets and put it on the other woman's head, laying her as far away from the flames as she could.
"Be back in a tick," Amy told her, smoothing her hair back from her forehead. Not surprisingly, she didn't react.
Amy made a mad dash down the corridors, tracking the lizard via a handy feature on the screwdriver. She thanked all the gods she had ever heard of in her travels that she had gotten the gadget.
There! It was inside an empty classroom at the end of the hall. Amy could hear its roars of confusion and rage as she ran towards it.
"I'm so sorry," she whispered, grabbing a fire extinguisher off the wall. "You aren't going to like this one bit."
She pointed the sonic screwdriver at the door and it burst open, releasing a wave of heat and light that almost knocked Amy over. She scrambled to press the release on the extinguisher.
The roaring ceased abruptly, and when Amy opened her eyes again she saw a winged lizard about the size of a medium dog slumped on the ground, covered in whitish foam.
"Oh, my God. A dragon," she exclaimed, but she didn't have time to wonder. The source of the flames had been extinguished, true, but the fire was still spreading and that poor girl was probably still lying in the corridor. Amy scooped up the dragon (which was thankfully light) and took off running down the corridor.
The teacher was lying right where Amy had left her, but the flames were getting closer and closer. She scooped her up, throwing her unceremoniously over her shoulder, and escaped the flaming building, heading for the TARDIS. Amy barely had enough time to put the woman in the medical bay and the dragon in one of the spare, fire-proofed rooms, before she too collapsed, overcome by exhaustion and smoke.