Gryff Rannuck has spent his entire life dreaming of adventure. But on his eighteenth birthday, he discovers a truth beyond anything he imagined: he is the lost heir to a fallen kingdom.

With three siblings scattered across the realm, a ruthless usurper hunting his bloodline, and four mysterious gemstones whose powers come at a terrible cost, Gryff embarks on a perilous journey to reunite his family and find the one man who can teach them to control their newfound powers.

But the very powers meant to protect them may ultimately destroy them.