Dani of the Future's request.

14AmyChan: Yeah, in the last story, Hiding Lies. Although I suppose it could come up again at some point….

d-u: I did ha-ha. Guess I'm not as concussion free as I thought :P

ficklepickle7: Thanks!

I'd love some more ideas guys. I don't own Phineas and Ferb or Gravity Falls or The Little Mermaid.

GENERAL POV

"Mabel, seriously, slow down! It's not like the lake is going anywhere!" Dipper laughed as he ran after his twin sister.

The girl spun around, smiling brightly, the braces on her teeth glinting in the sun as she skipped backwards. "Yeah, but the time is!"

Dipper rolled his eyes but chuckled and picked up his pace. She had a point, after all.

The two were heading to the lake after a long and tiresome day of tourists. Wendy and Soos had both been invited but they had declined, preferring to stay behind in the air conditioned Shack.

Dipper smiled. Ever since Candace had shown up and stopped Gideon from kidnapping everyone, he had been unafraid of the lake. The mermaids were no longer vicious. In fact, they were some of the nicest creatures he had ever met, now that they weren't trying to kill him.

When anyone else was in the lake, the mermaids, no longer under their curse of staying in the tiny pool, stayed low. But when it was the twins they willingly came up and stayed with them.

Dipper rounded the bend, smiling as he saw Mabel already in the water. He looked around, noting that no one else was at the lake. That made sense, seeing as how it was after six in the evening.

He dropped his bag and hat onto the sand and kicked off his shoes, running down to join his sister.

"CANNONBALL!" the boy yelped as he leapt off the edge of the dock and into the cold water. He came up shivering but grinning.

Mabel just giggled and splashed her brother, swimming towards the center of the lake.

She had noticed, as had everyone else, that ever since Candace had stopped Gideon, Dipper had been much more carefree, much more cheerful. Even though Stan had taken his journal, Dipper seemed to have turned over a new leaf.

Mabel wasn't sure what had clicked in his brain, but she knew that as long as her brother was happy with it, she was too.

A hand wrapped around her ankle and tugged the girl underwater. Mabel let out a playful shriek, smiling and taking a deep breath before she went under.

She felt gentle hands wrap around her waist and push her back to the surface, and when she opened her eyes she found Shona chuckling next to her.

"Hi Mabel," the mermaid said, smiling and releasing the girl.

Mabel smiled and floated back a little, glancing over to where Dipper was having a splash fights with two other mermaids. "Hey, Shona. What's up?"

The mermaid laughed, her green eyes sparkling. "Not much. Your brother seems to be enjoying himself though."

Mabel grinned. "Yeah, he is. I'm glad. He was kind of disappointed when Grunkle Stan took his journal from him. But he seems to have gotten over it."

Shona opened her mouth to respond, but before she could a dark haired, cocoa skinned mermaid with a bright pink tail surfaced next to them and tugged lightly on Shona's wrist. "Shona, a mysterious mermaid just showed up in the pool. We don't know where she came from."

Shona frowned. "It's not Candace, is it Leigh?"

Leigh shook her head. "No. She has red hair and a green tail. I've never seen her before in my life."

Mable glanced over at Dipper, who had swum over and heard the last few words of the conversation. "Dipper, do you remember that mermaid that Candace got switched with?"

Dipper nodded slowly. "Yeah, I do. I was thinking the same thing. What was her name?"

Mabel searched her brain for a few moments. "April?"

Dipper snapped his fingers. "Wasn't it Ariel?"

The girl nodded quickly and turned to Shona and Leigh. "We might know her. Is she unconscious or anything?"

Leigh shook her head. "No. She's just very confused. You say you know her?"

The twins nodded and began following Leigh and Shona towards the pool. "Yeah," Dipper said. "She and Candace got switched once. How did she get here?"

Leigh shrugged, turning around and paddling backwards so that she could face the twins. "She just kind of appeared. Didn't really take time to talk to her before coming to tell you, Shona."

Shona nodded as they reached the pool. The two mermaids easily pulled themselves over the wall and the twins clambered up and over.

The mermaid in question was sitting on the creek bed that ran into the pool, her green tail dangling in the water. Another mermaid with wavy brown hair sat below her, talking to her quietly. They glanced up as the group approached and the brown haired mermaid sank underwater.

"Is your name Ariel?" Shona asked immediately.

The girl looked stunned, but nodded. "Yeah. Who are you?"

Shona smiled. "I'm Shona. This is Leigh, Dipper, and Mabel. These two say that you once switched places with their cousin Candace."

Ariel broke into a relieved smile. "Yes. Phineas and Ferb mentioned you. I'm not sure how I got here. I was just swimming along and then something sparked and poof! I was here."

Dipper and Mabel looked at each other in confusion. "We'll call Candace. Maybe she can help."

They set out for shore and reached it in no time with help from the mermaids. Dipper trotted up the sand and pulled out his phone, dialing Candace's number quickly. She picked up on the third ring.

"Hey Dipper, what's up?" Candace said cheerfully.

"Um…Ariel kind of just appeared in the lake," Dipper said, glancing back over his shoulder at where the mermaids were waiting.

There was a long pause on the other end of the line before Candace spoke. "Pardon?"

Dipper chuckled slightly. "Exactly. Ariel just appeared here. She has no idea how she got here. Do you have any ideas on what to do?"

Candace, who was seated on her bed, chewed on her lip for a long time, staring at her ceiling. "Not a clue. Is there some mystical thing that could get her from there to here that you know of?"

Dipper shook his head, despite knowing that Candace couldn't see him. "No. Grunkle Stan took my book so even if there was one, I wouldn't know about it."

Candace frowned. "Stan took your book? Why?"

Dipper shrugged. "Said there were some cool attraction ideas in it or something. Doesn't matter at the moment. Could Phineas and Ferb make something that could transport Ariel back to the ocean, or at least back to Danville?"

Candace thought for a moment. "I don't see why not. They could probably re-create their picture transporter. We have a picture of Ariel around here somewhere. Phineas!"

Dipper pulled his phone away from his ear as Candace yelled, and as she spoke with her brothers he looked over at Ariel. "Phineas and Ferb are going to try and find a way to get you back with some kind of picture teleporter."

Ariel just rolled her eyes. "They come up with everything, don't they?"

Dipper just chuckled.

Phineas and Ferb had the machine ready in a matter of twenty minutes. Candace stayed on the line with Dipper the entire time, chatting. Ariel was transported away easily and Mabel and Dipper sat quietly on the dock, watching the sunset while the mermaids played around them.

"You know," Mabel mused thoughtfully, kicking her feet in the lake, "this was a really anti-climactic chapter compared to the others."

Dipper leaned over and pushed her off the dock. "Mabel, we've discussed the fourth wall how many times now?"

Mabel popped up out of the water grinning and pulled Dipper in after her.

Yeah, yeah, not much happened. But oh well. I thought we kind of needed a few peaceful chapters. Considering the next one...

CREATION 2014 IN A WEEK. MY GRAD PARTY ON MONDAY. GAH I'M SO EXCITED!

Review please!