The Weeping Gardens

The Doctor and his companions walk through Ponyville, still looking for the other Bearers. They had stopped to get some food, but other than that, they kept moving. The Angels must be in Ponyville, for ponies like Colgate and even DJ-Pon3 were missing. "A lot of ponies are gone..." The Doctor pulls out his Screwdriver and scans the area.

"Yup, that's a lot of Time Radiation, we have to find the Elements, GO!"

The Doctor grabs his companions and they hurry around Ponyville, careful not to look at any statues. They run to the center of town, where the Statue of the Mayor is waiting, though they don't look at it. "Okay, Mares, we need to find Older Derpy..." The Doctor scans Derpy, and gets another identical bio-signature across town.

".... Here we go... Allons-y... Geronimo...."

As the Doctor traces the signature, they slowly inch their way across the town, still not looking at any statues. "Okay, this is a sharp turn, close your eyes..." He tells the two Mares. They round the corner, passing a few statues. "Okay, it's getting closer..."

The Screwdriver suddenly starts beeping like crazy, indicating they they were here. "The old folks home. Well, that's pretty obvious."  Twilight says, slightly annoyed. "Quite Ms. Sparkle, we've got to make sure that we see old Derpy die, to make sure it's a fixed point in time. Then, Derpy dies in the present...

"And then I'll have a reason to go home."

"You mean I'm the reason you haven't searched for a way home?"

"...Yes... Yes, you are! You're my best friend, Derpy Hooves! I couldn't go home with such a great friend that I would have left behind! You're... different from all of the other people that have traveled with me! I can't explain it, but you are different!"

"Well... I'm sorry, Doctor, but I have to do this..."

"I know... C'mon, Mares..." The three walk into the building, and the Doctor goes behind the front desk, and finds the list of ponies in the home. "Okay, Doo... Doo... Ah! Here it is! Ditzy Doo! Room 45 on the third floor! Let's go, mares! Allons-y!" The Doctor runs towards the stairs with his two friends following behind him.

They make it to the room, and on the bed, is an elderly grey pony, with a blonde mane. "There she is... Now, let me scan her bio-signature one more time... Yup... only a few more seconds..."

Derpy walks over to her older self, and sits next to her. And she wakes up.

The Doctor half smiles. "Hello, Derpy. Meet Derpy."

The Older Derpy looks to her left and sees her younger self. "Oh, my gosh... I... Was so young... Doctor..."

"Yes. Yes you were. And you were my best friend. I'm not gonna ever forget you." The Doctor leads Twilight to the Older Derpy.

"Twilight... Sparkle... I remember you.... One of my friends..."

"Yup... It's okay, Derpy. We'll get those Weeping Angels, you'll see."

Older Derpy smiles, and closes her eyes. "Doctor.... My Doctor... My best friend..."

"As you were mine, Derpy. Now, when you get up there and see the Big Guy, ask him if you'll be able to see dead people from my universe. Ask for Ace."

Derpy smiles again, and takes a final breath.

"Okay... Let's... do the Paradox..."

The Doctor leads his companions out the door, and scans the area where the most Angels are.

"Canterlot..."

Twilight snaps her head to the Doctor. "Canterlot?! That's where Celestia and Luna are! We've got to go!"

"Exactly!"

Then, just before they run off, all three of them shout into the air: "ALLONS-Y!!"