Märchenprinzessinnen Reihe

My name is Zita, and I am the thirteenth princess. My twelve sisters are legendary, even in faraway kingdoms, but I am sure that you have never heard of me. Zita is not just any servant—she’s the thirteenth daughter of a king who wanted only sons. When all her royal sisters fall mysteriously ill, the only clue is their strangely worn and tattered shoes. Something sinister is afoot—and Zita must find the source of the enchantment and break the curse, or the twelve princesses will surely dance to their deaths.

Lilia embarks on a quest to rescue her best friend, Kai, who is under a curse from their encounter with the Elf King and his daughter. To break the spell, she must locate a powerful ancient jewel hidden in the North Kingdoms. Complicating her mission is the castle's own search for a true princess, adding layers of intrigue and challenge to her journey.