The Eternal Series Vol. Series by Candy Crum

Kailah narrowly escapes another attack from Khia only to discover her true place in the Great War.The shadow world is far larger than she ever could have imagined, and she is responsible for each and every one of them, whether she wants the responsibility or not. Death himself comes to Kailah, but the god is not the only one that's after her...

Kailah has been taken and the Rogues true plan has been revealed. It is impossible for Kailah to survive, but she must find a way if she is to realize her future as the new Immortal Queen and save all of human and shadow world-kind.