Published by Tor Teen
ISBN 0765328259 (ISBN13: 9780765328250)

SYNOPSIS:
“The students of Oakhurst Academy believe they have triumphed over the Shadow Knights. But Spirit, Burke, Muirin, Loch, and Addie know better. Under the guise of a company called Breakthrough Adventure Systems, the Shadow Knights have actually taken over the campus. The new regime is brutal, designed to turn the students into soldiers wielding both weapons and magic. Anyone who protests disappears. Desperate, the group decides that Muirin should go undercover to spy on Breakthrough. But Muirin’s act is a little too good, and Spirit begins to fear that her friend’s loyalties might have truly changed. Surrounded by enemies and friends who suddenly seem like strangers, Spirit has decide who can–and cannot–be trusted.” 

ABOUT THE AUTHOR:
Mercedes Lackey is the author of the Valdemar novels. She has collaborated with Andre Norton on the Elvenbane series and with James Mallory on the bestselling Obsidian Trilogy. She lives with her husband in Oklahoma.
Rosemary Edghill is a prolific writer in several genres, under her own name and various pseudonyms. She lives in Baltimore, Maryland, with several cats and several Cavalier King Charles spaniels, which she shows in obedience competitions.