Til Time: The Sultan's Siege

After three years in Edinburgh, Imogen Blaine has returned to London. She expects that a lot of things will have changed among her old school friends, especially with her best friend, Ashton Sinclair.

She has no idea just how much.

Their reunion takes a turn when the two are abruptly transported to an unfamiliar place... and time. Faced with the mystery of their sudden time travel and trapped in a strange land eight centuries in the past, they find themselves in grave danger as the forces of ...