The voice sounded oddly familiar to the Doctor, and if he had a chance to see the lad's face, well, he would be very shocked indeed.

Instead, the person was coming at him full-speed and the Doctor wasn't sure what was going on.

"Back where? I'm already against..."

And just then he saw the flames coming at him. So he followed the directions the lad gave. He formed a ball, to make himself as small as possible, while pressing as close to the side and as far away from the flames as possible. He hoped that any flames that made it into the nook would dissipate quickly.

"Please tell me the wee ones can't do that!"

'Wee ones' weren't all that small, but substantially smaller than mummy, so it worked.