Pinkie pulled her head out of the lake and looked at her reflection. The blood was gone. She turned to her left and saw the entrance to Manehattan. She stood still for a couple more seconds before making her way to town.

Twilight and the others finally emerged from the forest. They were back at Ponyville.
"Where did she go?" asked Rainbow Dash, looking around.
"I have no idea." said Trixie, a little confused. "I saw her go this way."
"She must have changed direction in the forest to throw us off." Twilight suggested.
"Yeah, probably." said Trixie.
Just then Luna landed in front of them.
"Princess?" asked Twilight, wondering what Luna was doing here.
"Did you find her?" asked Luna.
"No." said Twilight, sounding ashamed. "Sorry."
Luna let out a frustrated sigh.
"She's too dangerous to let roam around." said Luna. "We need to find her."

Pinkie held the dentist unicorn against the wall of the dental room.
"So, doc." said Pinkie with a smile. "will you do it?"
"I guess I have no choice." the dentist responded, sounding extremely frightened.
"Good boy." said Pinkie, letting the dentist go and sitting in the chair. "Do it."
The dentist levitated a pair of pliers and positioned them above Pinkie's mouth. Pinkie opened wide and the doctor felt his heartbeat accelerate. I guess it's safe to say he was both extremely nervous and extremely frightened. He gripped one of Pinkie's teeth with the pliers and yanked on it. It didn't budge but it made Pinkie flinch a bit.
"Again." Pinkie mumbled.
The doctor wiped some sweat from his forehead and yanked again. The tooth broke free of the gums but was till attached by a couple roots. Blood squirted out and hit the doctor on the cheek. He flinched as the blood hit. A tear fell from Pinkie's eye.
"Again!" she mumbled.
The doctor yanked again. This time the tooth broke free and Pinkie let out a stifled yell of pain. Blood poured out from the empty space where her tooth used to be. She then looked the dentist square in the eye.
"Again."
Minutes later, all of Pinkie's teeth had been pulled out and both the dentist and herself were covered in blood. Pinkie kept her mouth closed as she pointed to a box she had brought with her. Before her visit to the dentist, she had visited a blacksmith and forced him to make her a box full of metal triangles. Then she ate him. Ah, good times. Anyways, back to the present. The dentist opened the box and levitated one of the triangles. Pinkie opened her mouth and nodded. The dentist took a deep breath and then plunged the triangle into the far top-right side of Pinkie's gums. She flinched a bit as the metal pierced her gums and another tear from her eye. The dentist shoved it deeper until it was wedged in there good. He repeated this process until Pinkie's mouth was filled with metal "teeth". She rubbed them with her tongue to feel how sharp they were. The verdict? Pretty sharp.
"I wonder how good they work." she said, eyeing the dentist.
He took a step back and Pinkie lunged from the chair, pinning him against the wall again. She opened wide and dug her new teeth into the dentist's neck. The damage done was far greater than what her normal teeth could ever achieve. Blood poured uncontrollably from the dentist's neck and Pinkie licked some of it up.
"They work perfectly." she said, licking her lips. "Now... on to Ponyville."