Hereward: The Immortals is part of an ongoing series, book five for those keeping track. As such it is entirely likely that this review will contain spoilers if you haven’t read the splendid tomes that have preceded it. With that warning in mind move forward at your own peril. 1073 – under the merciless sun of the east, a dark force has risen – a Norman adventurer who could rival the feared King William for bloody ambition. He has conquered his land, he has built his fortress and he has amassed his army. And now he has taken Constantinople’s ruler as his prisoner… It falls to Hereward to rescue this precious captive. For this great English warrior-in-exile and his spear-brothers, it will mean mounting a raid that could prove the most dangerous and deadliest of their lives. Assisting them in their task will be an elite and legendary band of fighters, the Immortals – so-called because they believe they cannot die in battle. But it will not be enough – for enemies hide within the jewelled heart of Byzantium: vipers who spread their poison, who want to see the English dead at any cost and who are to transform a...