The Blue Guardian

Undertale & Rise of the Guardians Crossover

Summary: The Boogeyman has returned and he's stronger than ever. However, there's one tiny problem. He's not alone. Of course the Guardians are there to stop him. But they're not strong enough. A new Guardian is chosen to defeat the beings of fear and determination. But he has given up on fighting.

A new WHAT?!

(A/N): Contains spoilers! I suggest you either go play Undertale or watch Rise of the Guardians before reading.

Undertale belongs to Toby Fox and Rise of the Guardians belongs to William Joyce.


Jack gently tapped a window with his staff and watched it freeze. He looked at the snow covered town and smiled. He had done his job well. Then he heard a feminine gasp. Jack looked over and saw a little girl staring at the sky with her face full of awe. "Is that the Northern Lights?"

Alarmed, Jack looked up at the sky and saw the Northern Lights. That could only mean one thing. He stood up from his crouching position and called out to his friend. "WIND! Take me to North's!"

Jack was plucked from the ground and into the sky, high above the town. Several humans groaned as they were hit with the sudden burst of cold air. He whooped as he rode the Wind, straight to North's.


North's workshop was now in sight. Jack located a window and flew towards it, only to be rammed headfirst into it. He blinked, confusedly before realizing the window was closed. He pounded the window with his empty fist, the other clutching tightly onto his staff.

The window was opened from the inside, and Jack eagerly entered the workshop with a speed faster than a coyote. He ended up on a random empty seat, the other three being occupied by North, Sandy, and Bunnymund. Toothiana was currently speeding around in the air, giving out commands to her mini daughters.

"So, you're late… Again." Bunnymund said, not sounding very happy.

"Hey! I was busy!" Jack proclaimed.

"Doing what?"

"Spreading Winter in Wisconsin!"

"Oh really?"

"Yes!"

"Boys, this isn't the time to argue. Manny wants to speak with us." Toothiana said, sternly.

She was looking down at the two bickering Guardians. The two then promptly shut up. Sandy noticed the moon shining brighter. He waved his arms, his sand forming an exclamation mark over his head. Jack noticed this. "Hey, guys! Sandy's trying to tell us something!"

Sandy sent Jack a look of appreciation. "Vhat is it, Sandy?" North questioned the short man.

Sandy pointed at the moon. "Ah! Sandy, vhy didn't you say so?"

Sand steamed out of Sandy's ears as he stared angrily at North. North looked up at the moon. "Vhat is it, old friend?"

The moon shone brighter. The moonlight spread along the floor and the floor opened up. A large pedestal with an even larger crystal sitting on top rose out of the hole in the floor. The moonlight shone on the crystal and it began to glow a bright blue. Jack was confused so he glanced at the older Guardians. North's face was full of wonder. Toothiana's was full of curiosity. Bunnymund's was full of irritation. Sandy's was also full of curiosity. "Manny is choosing new Guardian? But Pitch is gone! Manny?" North whispered, not very quietly but it was a start.

My Guardians, Pitch is sadly not gone. He has returned. He's more powerful. He's never been this powerful before. And he's not alone. He has gained an ally. I do not know who.

"An ally?" Jack whispered.

Yes, Jack.

"Who da bloody hell would want ta help Pitch?" Bunnymund growled, his ears laying back.

Like I said I don't know. This is why I'm choosing a new Guardian.

As the light shone on the pedestal, a hologram appeared. It was a… skeleton? It was short and big-boned. It had a dimpled smile on it's face. It also had white pupils. It was wearing an unzipped blue hoodie, a white sweater, black shorts with stripes and a pair of pink slippers. All of the Guardians blinked in confusion. "Who's that?" Jack asked, never seeing this skeleton before.


(A/N): Here's the first chapter! Please send a favorite or a review! Those fill me up with DETERMINATION to keep writing! Love you all!