Dividing

Adamic is the language of the Gods. When spoken, it has the power to create worlds, to raise the dead, to make man as God. Fortunately, no one has spoken it in thousands of years. The only remnants are the written spells.
The people of Cavernum depend on these spells. They're etched into the city walls, fending off the feeders-deadly creatures with a thirst for human blood. They kill and consume any caught beyond the walls. Yet for the lower class, Cavernum isn't much safer. Children starve, and illness runs rampant. In an effort to maintain order, all children turning 18 are subject to The Dividing-a city-wide competition for the highest paying guilds. Those who aren't accepted are sent to the fields, condemned to a life of slave-labor.
Princess Roselyn Malik has trained her entire life for The Dividing. She's guaranteed a spot in the royal orchestra, but equalist rebels threaten her throne. To secure her crown, Rose must acquire the power and prestige associated with the guard. Only guardsmen have access to the amulets-powerful weapons that grant dominion over the elements.
Meanwhile, in Colorado, Matt will do anything to help his terminally-ill adoptive mother. For now, that means poaching to pay the bills. Until one day, Matt is attacked by a feeder and plunged into the world of Cavernum. There too, Matt is drawn to the guard, in search of a magic strong enough to save his mother.
But danger lurks beyond the walls, and Cavernum won't be safe for long.