Disclaimer: I do not own Rise of the Guardians or Phineas and Ferb.

As they flew through the sky on the sleigh, Jack once again pulled out his baby teeth. He had been thinking about reclaiming his memories so often lately, wanting to know why he was chosen and what he was here for. The answers were inside, he was certain of it, but Jack didn't know if he had earned them yet. "Jack, are you thinking about your memories again?" A/D Jamie asked, remembering what he had said while in the other dimension.

"Wait, he doesn't have his memories?" Jamie asked, thinking it was strange.

"Yeah, apparently I wasn't always Jack Frost. I don't remember being anyone else, or why I was chosen." Jack said softly, glancing ahead of him.

"Hey, do you think you can take over for a bit?" Jack asked, glancing towards Jamie.

"Me? I don't know how to fly this thing!" he said, getting worried. Jack laughed and gently shoved him, shaking his head.

"I didn't either, until I decided to come get you guys." he told Jamie with a grin.

"Uh, Jack? Does that mean that you weren't supposed to take the sleigh?" Claude asked, uncomfortable with the idea of riding in a sleigh stolen from Santa.

"Eh, no harm done!" Jack commented, avoiding the question.

"You stole from Santa! You're so going on the naughty list." Pippa squealed, amused by the thought of seeing a magical being get punished by Santa.

Jack laughed, no longer concerned with that silly list. "That's old news, kid. As North would say, I hold record." Jack told them, climbing back away from the front of the sleigh and shoving the reigns over to Jamie.

"Oh man, don't tell me that we're going to end up on the naughty list too!" Claude complained, worried about not getting presents when Christmas came.

"Don't worry, this one is all on me. Trust me, North knows exactly who took his sleigh." he told them, glancing at the box one more time. He needed them back, before the battle began. After all, he might learn something that could help him fight off those robots. Everyone else seemed to think he deserved these memories, so at least one of them had to be right.

Gently, Jack touched the top of the box, running his hand across the diamond-shaped patches of color that were decorating the top. As he did so, images began to form behind his eyes, images of himself playing games many years ago. He would play with his family, laughing with his sister as they played some prank on other kids. As more images flashed by, they eventually slowed down on one final moment, the moment before he died. He had been standing on a frozen lake, ice skating with his sister. The ice had been too thin and they were both about to fall in, but Jack was more concerned about his sister than himself.

He remembered his words that day, telling his sister to have fun instead of be afraid. It was a message to live by, inspiring to anyone who heard it. As soon as she heard it, she was able to be brave enough to get to safety. That was when the ice broke, just seconds after she was off the lake, letting Jack fall into the water and drown in her place. Jack blinked a few times as the vision faded, finding himself staring into the eyes of children all around him.

"Did you see that? I had a sister, a family! I saved her!" Jack said, his voice filled with excitement as he began to hover above the sleigh on his own.

"Uh, Jack? You might want to calm down. We've got a problem." Jamie said, glancing ahead of him. There seemed to be some kind of dark shadows in the sky, flying through the air. One of them stopped right in front of the sleigh, staring at them with red eyes.

"Nightmares? What are you up to?" Jack asked, recognizing the creatures. As soon as the one horse stopped, all of the others vanished and gathered in one spot, creating a funnel of dark sand. Once the sand faded away, a figure emerged.

"Jack Frost, is this what you've been up to?" Pitch Black asked, grinning at the winter spirit. Of course he had gone to get help, it was just like him. Always trying to turn everything into a game.

"Pitch, what's with the nightmares?" Jack asked, feeling uncomfortable with their presence near children.

"Are you really doubting me again? I was simply trying to find you. After all, we don't stand much of a chance against that robot army by ourselves. The Guardians are too dull to understand that I'm not a threat to them anymore and they refuse to fight by my side." Pitch explained, trying to sound confident like normal.

Jack, however, was able to hear the small amount of pain hidden within his voice. That bravado was all an act, Pitch's way of staying calm during this disaster. "Come on, let's get back to Danville. They might not be willing to fight with you, but I am. After all, nothing goes together better than cold and dark, right?" Jack asked, giving Pitch a small smile. Pitch grinned right back at the winter spirit, climbing off of his dark sand and into the sleigh with the children.

"Uh, Jack? Who are you talking to?" Jamie asked, not seeing Jack's friend.

"Well, you might know him as the boogeyman. He isn't quite as bad as you might think, though, and he prefers to be called Pitch Black." he replied, glancing towards the king of nightmares. His gaze was steady and calm, focused on trying to not create fear for once in his life. As the children began to see him, at first they seemed uncomfortable with his presence.

"It is a pleasure to meet you all. I do hope you don't mind my nightmares, they are here to help after all." Pitch told them, watching as his horses gathered and flew beside the sleigh.

"You don't look that scary to me." Cupcake claimed, after examining him for a few minutes. The other kids laughed, amused with her comment. Cupcake was always tough, able to take on anyone. Pitch gave her a thin smile, glancing towards the winter spirit and wondering how he did it. Pitch did not know how to talk to children, not without focusing on their greatest fears.

"Yeah, he's not that bad. He's going to help us, actually." Jack told the kids, raising an eyebrow at Pitch to confirm his statement.

"Of course, how could you possibly win without me? I am the King of Nightmares and that is all this will be, one giant nightmare for the city of Danville. I will put an end to this once and for all." Pitch claimed, staring off into the horizon. Maybe when this was over, he could spend more time with Jack and learn how to protect children instead of bringing them fear. It would be a refreshing change, for once in his life.

"Don't get too cocky, Black. After all, we both know I'm the one that is going to take those robots down." Jack replied with a grin, earning himself a glare from Pitch. Jack laughed at the look on his face, no longer threatened by the nightmare king. Soon, Pitch felt himself joining in, unable to resist laughing with the winter spirit, even if it was at his own expense.

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