Stars

Each star in the night sky holds magic. Magic only a single soul on Earth can handle. This brilliant power that the stars blaze with can grant any wish a person desires, making them the most wonderful and dangerous objects ever. Thankfully this magic isn't handled with just anyone, but a Guardian of The Heavens, the protectors of the stars. The Guardians grant wishes using the stars' powers and watch over the skies to make sure the dark stays away.
In this case a twelve year old girl names, Hazel is the Guardian of The Heavens. The skies of the world are hers. She use to rule the night with her brothers and sisters but all the Guardians had died...all except her.
A bloodthirsty King named, Ulric craved the magic of the stars as his own and created an army of monsters using dark magic. He attack the Guardians' kingdoms and destroyed everything, and murdered everyone. But with the final blow of war, the ten remaining Guardians of The Heavens joined all their powers together and burned King Ulric, and his army. But they used every drop of magic they had, and burned as well.

Leaving only Hazel.

And now the dark king has returned, and this time he refuses to fail.