Seventeen-year-old joss is a rebel, and a student of time travel at the prestigious centre for neo-historical fiction studies. This year, for the first time, the centre has an alien student: mavkel, from the planet chori...Seventeen-year-old joss is a rebel, and a student of time travel at the prestigious centre for neo-historical fiction 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.