The Weeping Gardens

The Doctor was in extreme pain as the Regeneration started. He refuses to go, though can't fight anymore. Reluctantly, he opens his eyes, giving the Angel more power. "I.... Don't.... Wan't.... To.... Go...." The Doctor says. closing his eyes yet again.

"It feels different this time... What is that Angel... *Ack!!* Doing to me?!?" The Doctor strains on the words as the Regeneration Energy swirling from his body starts to dim. "No! I'm not Dying today! Regenerate! REGENERATE!!!!" The Doctor wills his Time Lord energy to regenerate, but the Energy dims completely, and the Doctor falls to the floor.

"Doctor?! Derpy?! Anypony?!" Twilight says as she runs through the city of Canterlot looking for her friends. That Stallion would be getting a good hoof to the face for abandoning her like this. The City is being overrun with statues, Derpy is gone, and he decides it's a good time to take a break?!

She looks around for a good three hours before giving up and heading back to the Library. There, she picks up the same book Fluttershy had found, describing the Doctor and the TARDIS. She looks at the cover, and notices the Author. Dr. John Smith. She had found nothing strange about the name, but flipped to the Afterword in the book.

The Doctor is not of this world. Through my vast studies of the stallion, I can tell you that he is from a different Universe, from a planet known as Gallifrey. Now, for at least one of you out there, you'll already know this.

"What? How does he..."

The Doctor is a Time Lord, they travel through Time and Space with machines called TARDISes. The Doctor's is faulty, as it always takes the form of a Police Box from his Universe. Time Lords also have the ability to 'Regenerate', as in, when a body becomes too old, too sick, or injured, the Time Lord's body will literally rewrite every cell in his body and come out with a new appearance, with no wounds.

Though, a Time Lord can be killed mid-regeneration.

The Time Lords eventually went to War with a race known as the Daleks, which exterminate everything different from them. They are ruthless. They show no mercy. This War with the Daleks caused the Doctor to loose one of his lives, his Eighth, and then, killed the Time Lords and nearly all of the Daleks.

Now, Twilight, go find me. I have no idea where I am, but I'm pretty sure you will. I'm somewhere Dark. And I'm about to Regenerate. Find me, Twilight. Find me. Find me.

Twilight had the chills from that. "That's... Creepy..." Twilight says. She then turns around to look for the Doctor.

The Golden-Red light bursts out of the Doctor's body, filling the room with light. It was even more painful than his previous regenerations, but he could make out changes in bone structure. He can barely see through the blinding light, that, and the fact that the pain was pretty much blinding him, but he pressed on through the regeneration.

"AHHHHHHHH!!!!!"

The Doctor's pony features morph into something more,  something... familiar.

The light goes out, and the Doctor once again falls on the floor.

=====

"Ugh... Ow..." The Doctor opens his eyes with a jolt, and sits up. "Huh. It seems the Regeneration didn't do anything..... HOLD ON A MINUTE!!!!" The Doctor reaches a hand up to his face, and feels not a pony coat, but Time Lord skin. "Does this mean..."

The Doctor reaches to his collar, for it seems his clothes have come back too. "Bow ties. Are. Cool!" The Doctor stands, and looks around. "Look out, Master. The Doctor will be seeing you now..."