Mirror's Deceit - Justine Dowsett Alley

Mirena Calanais is destined to change the world. Her rival has made a desperate flight to the past to stop her.

A gifted student of majik, Mirena is on the verge of graduating from a secret college that will give her a leg up in her political career, when her achievements are overshadowed by the arrival of a mysterious woman with an unknown agenda.  Desperate to keep what she sees as her rightful place in the spotlight, Mirena goes to astounding lengths including taking it upon herself to pose as a double agent to investigate a rebel force plotting to destabilize the government. Unfortunately, her actions cost her the trust of those around her, so when she is proclaimed the Dark Avatar of the Destroyer, she finds she has nowhere to turn.

In a seeming utopia, Mirena is now a pariah with the force of Destroyer behind her and her once bright dreams have darkened, leaving her a threat not only to herself, but to those she cares about. Can she turn her life around, or will someone need to stop her before she goes too far?