"Do what I do when I do it," the Doctor ordered.
He buzzed the sonic screwdriver at the hatch under the TARDIS, causing it to open. The TARDIS hung by the claw on the chain and a whirr from the sonic screwdriver sent the chains unwinding and the TARDIS falling.
"Jump!" the Doctor called.
The original Doctor and Bill jumped and grabbed the chains lowering into the snow, and the Doctor flew around them, spiraling downward.
"What are you-?!" the original Doctor stuttered.
"Ah, yes. I'm flying."
"You cannot do that!"
"Well, I am, so I can." The Doctor landed and looked up in surprise at the TARDIS suspended a few feet above the ground. The original Doctor and Bill slid down the chains onto the top of the TARDIS.
"Jump!" the Doctor shouted.
As soon as they jumped, the TARDIS began to rise again.
"What do we do now?" Bill asked.
"Run!" the Doctor shouted.
"Where? They've got the TARDIS."
"Yes, that's exactly what they're supposed to think."
"But they do though. Look."
"They've got my TARDIS. Over to you, Mary Berry."
"Come on," Mary Berry Doctor said, beginning the short trek toward his TARDIS.
"Doctor, is that another TARDIS?" Bill asked as it began to appear through the falling snow.
"No. No. It's another of the same TARDIS," the Doctor said.
"Hang on, the windows are the wrong size," Bill noticed.
"Inside, quickly!" the Doctor urged.
They ran into the old, crisp white, hexagonal interior, the walls covered in huge roundels, where the Captain was waiting.
"Take off, now! Deep space, anywhere," the Doctor ordered.
The original Doctor set the TARDIS into motion, then immediately turned to face his future self. "I tell you, you cannot fly."
The Doctor jumped into the air, floating backwards. "I tell you, I can."
The original Doctor followed him and they circled the console. "Have you got an invisible jet pack?"
"No, I'm just flying."
"A personal anti-gravity device?"
"I'm just flying."
"Some sort of magnet suit that exploits the magnetic current of the planet, utilizing it to float?"
"I'm just flying." The Doctor pushed off the air with his feet and spun a backflip.
"I'm ever so confused," the Captain said, watching the Doctor fly around, "But I'll tell you what. These police boxes, they're ever so good, aren't they?"
The Doctor glared at his future self for a moment before turning back to the console. "The navigation systems don't function properly. I'm unable to program our flight with any accuracy."
The Doctor flew through the overgrown garden full of unknown monsters and dangers. He heard his past self running to catch up and sighed with frustration.
"These creatures! What are they?" the original Doctor asked.
The Doctor flew down to him. "Old friends of ours, but they've really come out of their shell." He grabbed himself under his arms and started to fly back up. "It's not safe on the ground."
The original Doctor seemed extremely uncomfortable in the air. "Out of their shell?" he questioned.
Pain shocked the Doctor from the inside, spreading through his whole body and he gasped, falling to the ground. The original Doctor stumbled and the Doctor fell against some rubble.
"Are you all right?" the original Doctor asked.
"I'll be- I'll be fine in a moment."
"What's the matter?"
"I died a few hours ago, then I refused to regenerate. It catches up with you. You know, it's like a big lunch."
"I did exactly the same."
"I know you did. But why? I don't remember this. Why are you refusing the regeneration?"
"Fear. I'm afraid. Very, very afraid. I don't normally admit that to anyone else."
"Don't worry. Technically you still haven't."
"Why are you-?"
Lasers shooting toward them from a tall, overgrown tower interrupted the Doctor. The Doctor grabbed his younger self and flew, dodging the beams.
"There's something in that tower!" the original Doctor observed.
"Must be my friend," the Doctor said.
"Why do you call him your friend?"
"He's got a great big gun. Are you suggesting I insult him?" The Doctor put himself down and landed in a beam of light. "Just scan me. Go on, scan me. Because I've got big news for you. I'm dying."
"Merry Christmas, Doctor," Clara said.
"Clara," the Doctor said with fondness.
"Hello, you stupid old man."
"You're back. You're in my head. All my memories are back. It's not anger."
"And don't go forgetting me again, because, quite frankly, that was offensive."
That's it for now. It may be a while, years, or never before I do the next one, depending on how things go.