All this stuff is owned by Disney. This is crossing over with a bit more than bh6 and frozen lol. There's a bunch of pairings in this fic. Keep reading, lol. This chapter was posted in the Haunted Mansion line.

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"Queen Elsa will be here soon to see you," the snowman beamed as he waddle-ushered the group into the painting gallery.

"We're in that cartoon world Ms. Marvel went on about, aren't we?" Abby whispered.

"I think so," Hiro replied.

"She's here," Wasabi smiled at the regal, white-haired figure in the doorway.

"Welcome to Arendelle. I hope you weren't waiting long," Elsa said. She was poised and luminous but her eyes looked weary, "What brings you here?"

"And why are your clothes so strange?" "Olaf!"

Abby giggled. "It's ok. We're from an alternate universe. My brother was kidnapped and brought here," Hiro said.

"If anyone like you had arrived here, I would have received him just like I have you. Unless..." Elsa thought back to the letter in her office. "Olaf, could you please bring me Rapunzel's letter from the state rooms?"

"Your body temperature is irregular," Baymax said to Elsa after Olaf left the room.

"Baymax!" Wasabi looked horrified. "Oh, it's perfectly fine. But what is he? He looks like this snow monster I made once but..." Elsa began.

"He's a healthcare bot my brother made. He can scan one's physical shape."

Elsa walked around Baymax, summoning a light snowfall. "This is most irregular. There should be cellular damage to your hands," the robot observed. Wasabi looked embarrassed.

"Are there others like you here?" Abby asked. "No, although we have gotten reports... Does..."

"Tadashi," Wasabi said.

"Tadashi... Have powers like this?" Elsa continued.

Abby and Wasabi shook their heads. Hiro added, "When I was little, I used to think Tadashi could manipulate fire. Pretty silly, right?"

"Hiro, one of the reasons Tadashi built me was because of that," Baymax droned.

Hiro stared at him, horrified. "The fire the night my parents died... That's why he only waited tables for Aunt Cass?!"

"It's not easy growing up with these sort of powers. I kept my sister distant from me for years because of mine. But that's not what concerns me. The Southern Isles have been trying to take over my kingdom ever since we stopped a coup of theirs," Elsa said.

"Hans?" Abby asked.

"And his 12 older brothers," Olaf chirped as he carried the letter in.

"You think they had Tadashi kidnapped to use his powers?" Wasabi asked Elsa.

"Dashi would never help them," Hiro said firmly. "I hope so, but I never pictured my father would..." Abby's voice trailed off.

Elsa squatted down and looked right at Hiro, "That's good enough for me. If your brother is truly being held in the Southern Isles, we'll get him back."

At the sound of footsteps, Elsa looked past Hiro. Anna and Kristoff had brought the trolls. "I don't think it'll be quite that simple," the Troll Elder said sadly.

tbc

Dun dun dun