Every ending is a story in itself. Sometimes, it is really a beginning.
The princess will return to her kingdom, and there she will become queen.
The problem is that there will be nothing left.
With her kingdom destroyed, and only a handful of survivors, she must attempt to give her people a new life, and protect them from the threat that still lingers.
Her kingdom isn't the only one in danger, however. Will she help her neighbors avoid the same fate?