After saving the emperor's life in Rome, Marcus and his comrades have been sent across the sea to the wealthy, corrupt Greek metropolis of Aegyptus, Alexandria.
An unknown enemy has slaughtered the garrison of the Empire's last outpost before its border with the mysterious kingdom of Kush. Caravans can no longer reach the crucial Red Sea port of Berenike, from which the riches of the East flow towards Rome.
The Emperor's most trusted and most devious adviser has ordered Marcus's commander Scaurus and his trusted officers to the south. With orders that are tantamount to a suicide mission, and with only one slim hope of success.
Can a small force of highly trained legionaries restore the Empire's power in this remote desert no-man's-land, when faced by the fanatical army of Kush's iron-fisted ruler?
Read MoreA masterclass in military historical fiction. - Sunday Express on RetributionA master of the genre. - The TimesFast-paced and gripping "read-through-the-night' fiction with marvellous characters and occasional moments of dark humour. Some authors are better historians than they are storytellers. Anthony Riches is brilliant at both. - Conn IgguldenA damn fine read . . . fast-paced, action-packed. - Ben KaneStands head and shoulders above a crowded field . . . real, live characters act out their battles on the northern borders with an accuracy of detail and depth of raw emotion that is a rare combination. - Manda Scott