Siege: Book 6 in the Kings Keep Series

Has Alec been sent back in time, or was his experience at Kings Keep Academy a delirious dream? Struggling to escape from his unfamiliar prison, Alec needs to find Rod to complete the mission set for them by Celador—to repair the time-tear and close an open time gate, as well as return the runaway convict boy to his rightful period in Australian history. The invisible war of worlds follows Alec to his family farm for his thirteenth birthday and drives a wedge between him and Rod that may be irreparable. Has the time-tear also torn their friendship forever?