Anna realizes her love too late and Elsa's already married. (Permutation Prompt #8)

Elsa hides her inappropriate love for Anna and goes through with marrying a nice foreign prince, who becomes King. Among royalty, marrying for love is unheard of, so the new King doesn't bat an eye at Elsa's lack of passion in the bedroom (though he is genuinely taken with her beauty and makes an effort to treat her well and gain her affections for real). However, at this inopportune time, Anna finally sorts out her feelings and realizes that Elsa is her one true love.

Option 8A – Anna has grown up and realizes that she needs to be responsible and sacrifice her heart to protect her kingdom, just like Elsa did every day for 13 years. A lifetime of tortured longing and stolen glances follows. The good King suspects something untoward between his wife and sister-in-law, but is reassured after his men spy on the royal sisters and see that they never act sexually towards each other.

Option 8B – Anna takes her turn trying the "conceal-don't-feel" routine, but she's a lot worse at it than Elsa, and fails miserably. Elsa's husband (the King) catches them in the act, and Anna promptly tries to take responsibility to protect Elsa. The King may or may not see through it, but in either case, he banishes Anna from the castle. Much to his anger and jealousy, he sees that Elsa becomes depressed and loses her will to live after Anna is taken away. At first, he realizes Elsa will do anything he wants if he threatens to have Anna killed, but after months of abuse, he finally tires of her mindless compliance and gives up on interacting with her entirely. Kristoff takes the broken queen to his home, where he's been taking care of Anna during her depression, and they slowly heal together. The King takes another wife to obtain an heir, and no one objects, until a year later when Princess Rapunzel of Corona comes to visit her cousins and learns what has happened. She offers to get back at the King by contesting his newborn son's succession, but her cousins prefer to live quietly in peace, and so the dynasty of Elsa's ancestors ends with her. Unfortunately, three generations later, one of Rapunzel's over-ambitious descendants, locked out of the inheritance of Corona, tries to assert his family's claim to Arendelle, and a great war follows.

Option 8C – Anna and Elsa hide their feelings (each unaware of the other) and everything seems fine, until the King decides to arrange for Anna to marry another foreign prince to gain an important allied kingdom. Suddenly, Elsa's jealousy is triggered, hard. But since she can't tell her husband why she's so opposed to her sister getting married, he refuses to cancel the engagement. Elsa vacillates fearfully for weeks as the day for Anna's departure approaches. Anna demands to know what's bothering her sister, but Elsa is afraid that a confession will push Anna away permanently and/or cause Anna to break off the engagement with severe diplomatic consequences.

Variation 8C-1 – Elsa confesses, and Anna wants to call off the marriage, but eventually accepts Elsa's pleading to go. A few years later, Elsa and her husband receive a letter from the other king reporting Anna's disappearance and likely tragic death in a hunting expedition. Elsa mourns for months until a suspiciously familiar young woman shows up at Arendelle Castle to apply for a servant job…

Variation 8C-2 – Elsa says nothing, once again breaking her sister's heart. Years pass before they are able to see each other again, but time has not diminished the spark between them. They miss each other so much that even without words, Anna now knows exactly what Elsa didn't want to tell her on the day they last parted. A few glances across the ballroom and they can't stop themselves from consummating their long-denied love in the cloakroom, Elsa futilely repeating out loud that they need to stop while her body cooperates with Anna's advances in spite of her words. Unfortunately, by now Anna has become a mother and cannot so easily abandon her child back at her new home. So they carry on their affair across the years, spending rare and passionate moments around corners and behind curtains at various kingdoms' celebrations. Many years later, Elsa and Anna find that their children seem romantically interested in each other, which is a perfect excuse for them to see each other more frequently… what will they do?

Option 8D – Elsa was controlling her powers just fine as long as she believed Anna didn't love her back the same way. That control disappears once Anna confesses, and suddenly the whole kingdom is back in eternal winter. The solution is obvious, but who dares to tell the King? So the sisters are forced to conceal their adulterous method of thawing the kingdom. They manage to keep Elsa's powers under control long enough for Elsa to provide her husband an heir (which means the royal council now thinks she is now dispensable). Some time later they are caught in their affair, and are happy to be banished from the kingdom, living happily ever after in Elsa's castle on the mountain.