ISBN-13: 9780099287292 / Angielski / Miękka / 2002
Written in the form of memoirs of the various characters, Emperor covers Constantine the Great's march on Rome culminating in the battle at Milvan Bridge (312AD). The book centres on Constantine himself on the eve of his 'miraculous' conversion to Christianity, and his struggles during the campaign - religious, martial and marital. Published to coincide with the author's new book, To the Last City (Chatto, July 2002).