Threads of Destiny: A Royal Reunion

a story about Rapunzel and Flynn Rider after they got married and they wind up in Arendelle to visit Elsa and Anna, Rapunzel's cousins, at the coronation ceremony. Elsa is overwhelmed with becoming queen and Rapunzel tries her best to comfort her. Anna on the other hand gets in trouble with Hans and she eventually ends up in a situation she deems insufferable.