Kjekk

Kjekk is Anna's horse, whom she grew up with and rode in pursuit of Elsa after the latter fled from Arendelle.

History
When Elsa accidentally revealed her powers at her coronation, she fled into the mountains. Anna decided to go after her sister and called for her horse in order to do so. After Kai brought her horse and cloak over to her, Anna reassured Hans that she would be all right during her journey before setting off to find Elsa.

The next morning, Anna and her horse had made their way through the forest while the princess called out for Elsa. However, the horse became startled by the howl of a wolf, and after a tree branch fell under the weight of heavy snow down in front of the pair, the horse bucked and galloped away in fear, leaving Anna alone in the wilderness. The horse made its way back to Arendelle, still frightened and panicked. Hans managed to calm it down, but the citizens began to worry about Anna's whereabouts. As Hans looked to the mountains, he decided to go in search of Anna.

Trivia

 * When Kjekk was young, he was a master escape artist. After the horse's twentieth escape, Anna learned how to make the tightest knot possible to keep him from running away.

Animation

 * Frozen

Books

 * A Frozen Heart
 * Frozen: Book of the Film
 * Big Snowman, Little Snowman