Elsa of Corona - a Frozen/Tangled crossover (AU)
53 parts Complete (Commissioned cover art by Nonakani.)
Instead of being sequestered in her room, Elsa is sent by her parents to her Uncle and Aunt, the King and Queen of Corona. King Thomas and Queen Primrose are thunderstruck at the idea of caring for the girl, since their own daughter, Rapunzel, was kidnapped as a baby and is still missing.
Rapunzel and Elsa's stories become intertwined. Elsa is more in control of her powers. Distance from Anna allows the sisters to become close through their letters to each other.
Elsa's fate to become the Snow Queen, however, is not so easily escaped.
(Crosses over Disney's Frozen, Disney's Tangled, & Hans Christian Anderson's The Snow Queen. Slight reference to Elena of Avalor (Disney TV) at the end.)