Thorn Of Darkness: Special Edition

Thorn Of Darkness is the 3rd book in the YA romantasy series, Destiny Of Graystone.

Book blurb:
Life is just starting to get back to normal for Sierra. Or at least what normal should look like for an Immortal Savior. She’s enrolled in the Guardian Academy and on track to become an immortal guardian, just like her late mother.
But strange dreams torment her as she sleeps. These dreams reveal a way to assist those who perished in the battle. The most powerful gemstone in Graystone’s history is hidden within a cave deep in the forest.
Only an immortal gifted with elemental magic can break the surrounding spell; however, if Sierra masters both light and dark magic, she can bring them all back to life.
The villain lies imprisoned within Mt. Olympus, and it appears the ancient prophecy from the soul seer has been fulfilled. However, an attack on the academy shifts allies into adversaries. As they battle to defend the school, who can they truly trust?

This is book 3 of 6 in the Destiny Of Graystone series!