Synopsis: From the back cover of the Firebird paperback: Seventeen-year old Joss is a rebel who can blow a mean harmonica, and a student of time travel at the prestigious Centre for Neo-Historical Studies. This year, for the first time, the Centre has an alien student - Mavkel, from the planet Choria. And Mavkel has chosen Joss of all people, as his roommate and study partner. Joss is less than thrilled by the high-tech security surrounding Mavkel, and alarmed by the danger he seems to attract. Still, she is intrigued, because the Chorians are a harmonizing species of twins who communicate through song. What better partner for a demon harmonica player? Then Mavkel gets sick, Joss quickly realizes that he is pining for his lost twin, and his will to live is draining away. The only way she can help Mavkel is by breaking the Centre's strictest rules... and that means going back in time to change history.