Colin Thubron has chosen to present his vividly original concept of Constantine as a mosaic of fragments from letters, written orders, jottings from supposed journals of the emperor and his train and, most revealing of all, extracts from the correspondence of his lovely, tragic, inaccessible wife, Fausta

It is a stylish, sensitive exploration of complex people in an era of complexities, and creates vividly the climate of an over-ripe civilisation falling into self-questioning

'Legionaries and their commanders, frigid empress and frivolous lady-in-waiting, and, above all, the ambitious, domineering, but also self-tormenting and restlessly questioning Constantine - all come vividly to life and persuade the reader that he is their contemporary.'