The Phoenix Ascending

Sequel to "The Clockwork Locket." Cassie Alderfair never expected her sixth year to be normal. After a year of dark secrets, mysterious powers, and devastating betrayals, she knew better than to hope that things would ever be the same. And now with a war looming on the horizon, threatening all, Cassie must learn to fight - or risk losing everything she loves. (Marauders' Era)