Crimson wind

"Max knows what trusting the wrong person can cost you. Her former friend Giselle, a powerful witch, enslaved Max years ago, turning her into a Shadowblade--a deadly warrior compelled to fight for Giselle. But there's more at stake now than Max's thirst for revenge. The Guardians, overseers of the magical world, have declared war on humanity and any witches not standing with them. Max and Giselle ...