Due to their separation in childhood, Elsa missed many of Anna's birthdays while growing up. Months following their reconciliation during the Great Thaw, Elsa planned to give Anna a memorable birthday and spent weeks planning for the event.
"Come on, Elsa. This is for Anna. You can do this."
On the day of Anna's birthday, Elsa, Kristoff, Sven, and Olaf were busy with the final preparations for the party in the courtyard. While Elsa anxiously pondered over a selection of ice figurines to top off Anna's birthday cake, Kristoff and Sven erected a large banner bearing the words, "Happy Birthday Anna". Though she was anxious, Elsa left Kristoff in charge of the courtyard so that she could rouse Anna and start off the day.
"Just follow the string!"
Sneaking into Anna's room to find her still in bed, Elsa nudged Anna awake and informed her about the day she had prepared for her. After Anna got dressed, Elsa used her icy magic to add color and pattern to both their dresses, then instructed Anna to follow the string.
Accompanied by Elsa, Anna followed the path of the string to various checkpoints both inside and outside the castle where Elsa had hidden presents, including:
- A bracelet in an armour
- An olaf cuckoo clock inside a cabinet
- A bouquet of flowers on a balcony railing
- A sandwich in a basket suspended by the string
- A portrait of the sisters, Olaf, Kristoff, and Sven on a wall
- Stockings suspended by the string above the hallway
- A fishing rod inside a wooden boat
- A snow globe
- A cloak from Oaken's Cloakens
- Children's choir
- Wooden dolls of Anna and Elsa at a clocktower
The scavenger hunt would culminate with a surprise party at the castle courtyard
"Elsa, I'm thinking you might have a cold..."
As the sisters spent the day collecting the aforementioned gifts, Elsa exhibited signs of a cold through her sneezes. At each sneeze, little mischievous snowmen called Snowgies were conjured. Though the snowmen went unnoticed by the sisters, Anna worried that Elsa was sick, despite the latter's assurance otherwise. As the sisters continued to spend the day, more Snowgies continued to materialize as Elsa's conditions deteriorated.
The growing horde of snowmen proved to be hindrance to Kristoff, Olaf, and Sven in the courtyard. Initially asleep, the trio was awakened by the presence of the Snowgies and defended Anna's cake from the rambunctious snowmen.
As, Anna and Elsa headed into the village, they encountered Oaken, who offered Elsa a cold remedy. Though Elsa turned down the offer, Anna accepted the medicine. As the sisters continued on to clock tower, Elsa became more feverish, causing Anna to concern to grow further. However, her fears were confirmed when Elsa deliriously climbed up the tower and nearly fell after spinning round a wooden beam. After being saved by Anna, Elsa acknowledged that she had a cold, and the two sisters made their way back to the castle. Though Elsa brooded over how she had ruined the day, Anna assured her sister otherwise and remained focused on getting her to bed for some rest.
At the courtyard, Kristoff, Sven, and Olaf continued to defend the cake from the Snowgies; however, the snowmen ceased their assault upon seeing Anna and Elsa arrive. They subsequently arranged themselves in a way that Kristoff was able to leap from the mass of snowmen and slide on the ground to present the cake to Anna, who admired the spectacle. Elsa, now realizing that the Snowgies were the results from her sneezes, saw that the surprise party she worked hard for Anna was a rousing success. However, Anna then insisted that Elsa should go to bed, though her sister insisted on blowing the birthday bukkehorn first.
After the party, Anna helped a very tired and very feverish Elsa into her bed. As Anna fed her bedridden sister some warm soup, she happily remarked that her best birthday present was being able to take care of Elsa.
- ↑ Lee, Jennifer (September 3, 2014). @MarianaDeLama For all who've asked, here's an exclusive: Elsa was born on the Winter Solstice & Anna on the Summer Solstice. #AskFrozen. Twitter. Retrieved on October 10, 2014.