Darkness? Or Light? =Completed=

A princess from a kingdom and the princess to another kingdom, as close as best friends, get separated when darkness takes one of then causing her a traumatic accident with her best friend, years later, the oldest princess becomes a queen but darkness once again ruins it, and causes an accident again, will the youngest be able to help her best friend? Or will she fall to a single strike of her friend?

(Adaptation of "Frozen" this is just an rp that we started together, and this book was made with my best friend Aquamarine Grace, and is on Quotev)