A/N: I had to google what the hell deck the halls was and ignore the entire song and its lyrics because of my headcanon. And for those who read this and didn't know me, I did my previous elsanna week prompts continuously so I'm gonna try did it with this, too.

"Kai, Kai, Kai! I need your help! Oh you too, Gerda, come here!" The pudgy woman narrowed her eyebrows and frowned at her husband before walking over to the princess on the ladder.

"What is it, Princess Anna?" Kai asked.

"I need you to-" She grunted. With one hand reached out to the top of the tall window, she bit her lips and tried to place a little star on the top of the arc which she could barely reach. "Oh yes!" She cried when the star sat perfectly still on its spot. Perfect.

"Ah right, where was I… Ah, I need your help with lots of things, actually." She stroked her chin after coming down the ladder, with the elderly couple by both sides with their hands waving in the air making sure their princess didn't fall. Anna tilted her head side to side, "I need you to… gather all the staff… and… a few ladders. Yes, and remember the mistletoes I asked to throw out? I want them back. Use them to form a wreath and place it on top of Elsa's throne, and…"

"What?!" The couple asked in sync - truly a couple, Anna admired. Elsa and her had not reached that level yet. "B-but your highness, her majesty- she, um… have you gotten her thoughts on this?"

"Pish posh, Elsa can suck it. I'm her princess, remember?" She waved her hand and smirked confidently. "Oh right, where was I… Oh oh oh! I need a star in that wreath! Her majesty is the star of the evening! And, and, and, and I'll need your servants to get me up on that chandelier so I can decorate it with some tinsels, do we have any, Kai? Shall I visit town to get some?"

"That… may not be necessary, your highness." Gerda hesitated, unsure how Queen Elsa would take it. Indeed, in her many years of caring for the girls, she knew Elsa gave in to Anna regarding anything and everything, except opening that door she too had come to hate. "Since tinsels were used to imitate the shimmering effect of ice, perhaps you could try asking your sister?" She suggested.

"Gerda!" Kai and Anna shouted for obviously different reasons.

"That's a great idea!"

"What are you thinking?!"

All eyes went to Kai and the man almost literally shrank.

"I-I- mean, Queen Elsa had never been religious, so I doubt she would bother herself with such… if I may, insignificant concerns?"

Anna's eyes widened. She had never thought of it, never realised it either. Elsa wasn't religious?

It struck her as odd, to say the least. Despite being raised by the same parents, carrying out same traditions, having had the same lessons, her sister didn't believe in the Holy Father, Jesus, or Mother Mary?

And then it left her lost on the spot.

"So… do we still celebrate christmas if the Queen doesn't celebrate it?" The words slipped her lips without even her knowing. It was so soft she wouldn't have known she had said a word herself if it wasn't for her slight breathlessness. Her heart sank a little at the thought of not celebrating the festival of gift-giving.

She really wanted to give Elsa something this year now that she could.

"It's alright, Princess Anna." Gerda spoke up.

"Indeed, even though Her Majesty may not believe in Christmas, you could celebrate it. I'll get you your tinsels in a jiffy. Tell Gerda what else you need to get done while I head out to town for a while." Kai volunteered himself.

The princess' face lit up light christmas lights, and she hopped around the couple and pulling them together for a tight hug. "Thank you so much!"

"Alright, princess, now would you like to hear my suggestions?" Anna nodded eagerly. She wasn't expecting any help, to be honest. Having never really celebrated christmas except for having (not-so-)secret santas, the royal family never actually had the time to spend christmas together, let alone decorate it. And now that Elsa was Queen, and proud of her powers, they could actually do it! Gerda guided Anna to the polished wooden railings and pointed to the red walls behind her sister's throne, "Since our hall is pretty big, I was thinking…"

Hours went by and before Anna knew it, the sun had set and she found herself dragging her feet to the next pillar to tie a tinsel around it. Her tired feet burned with every step she took and she could barely lift her arms anymore since it took forever for her to tie them around every single pillar.

While the servants and chefs got themselves busy cooking and decorating the rest of the castle, Anna decided that after receiving help for the throne and chandeliers, she wanted to do everything else in the grand hall on her own.

Elsa would be so proud of her, she smiled at the thought.

After tying the last tinsel around the pillar, she ran up the stairs, her feet as heavy as ingots, her muscles crying for a break, back to the railing Gerda stood beside her to look at her proud work and sighed.

Finally, she headed back to the study. Peeking into the door, she saw her. Donned in her coronation gown and braids, Elsa's messy bangs fell, covering her eyes. The candle lit shown brightly beside her sister as she scribbled away, the feather wafting across the scrolls so quickly Anna was surprised her sister didn't sneeze every time it passed her nose. Or her face. Whatever. It should tickle.

"Anna?" Elsa greeted. "Why are you not in bed yet?"

Anna entered the room and it was as if her sister immediately noticed her fatigue and her blue eyes zoomed in on her feet. "Busy day as it was for you, surprisingly. Not sleeping yet?"

"No, I still got a couple more offers to read through before that, why don't you head to bed first? You look tired." Elsa offered her sister a look that probably mirrored hers - exhausted and couldn't wait to hit the sack.

Anna walked around her sister and gave her a soft hug, all energy in her depleted, it was all she could do. Her lips barely touched her sister's cheek before she nodded and tugged the blonde with whatever energy she had left in her, "Come with me."

Needless to say, Elsa agreed.

Unbeknownst to the princess, Elsa spent the entire walk back to their chambers confused and lost. Just the previous day, she found the entire castle green, and now it was… colourful? While the princess enjoyed the occasional silence they had together, understanding they were both too tired to talk about anything and took to embrace each others' presence, the queen took her younger sister's silence as an opportunity to come to a decision about what to do with the rest of the castle.

Anna really had a weird choice of colours - who decorated christmas with blue, green, and red. Really.

She shook her head and hid a sigh behind her hand. She loves Anna and would do anything for her sister, but if possible, not with Arendelle at risk. She had a dignitary visiting tomorrow and… this wasn't going to be good. She pursed her lips and thought about it.

"Goodnight, Elsa. I'll see you in dreamland."

"Goodnight, Anna." Elsa mumbled while covering Anna with her blanket. The princess snuggled into the warmth the cloth seemed to magically provide and turned to see Gerda by the door with a serene smile on her face. She felt a slight jerk in her sister's movements and could practically feel warmth emitting from her sister as she greeted, "Good evening, Gerda."

A slight cool breeze caress her cheeks. The last words Anna heard Elsa say before consciousness slipped away was "Remove the tinsels."