India Summers is a librarian and a talented historian, so when a stranger asks her opinion on an ancient coin she is happy to oblige, but when the same man is murdered less than an hour later, it soon becomes apparent that there is far more to the situation than meets the eye. Recognising her unique talents for historical reference, she is quickly recruited by Brandon Walker, a security service intelligence officer investigating the strange disappearance of a very special young girl.

The Holy Land is in turmoil and desperately awaits the arrival of Edward Longshanks and his relieving army of French and English Crusaders. This is a time of brutality, an age of chivalry. A time of strong men with stronger hearts, an era with no place for the weak. Yet a thousand miles away, a 14-year-old boy learns a disturbing secret that drives him on a Crusade of his own. A quest to avenge his family, save his brother, and in the process recover the holiest relic in the history of Christendom.

25 BC. Titus Cervianus is no ordinary soldier. A former surgeon from the city of Ancyra, he's now a capsarius—a combat medic. Cervianus is a pragmatist, a scientist and truly unpopular with his legion. The Twenty Second Deiotariana have been sent to deal with uprisings and chaos in Egypt. Yet the Twenty Second is no ordinary legion either. Founded as the private royal army of one of Rome's most devoted allies, the king of Galatia, their ways are not the same as the other legions, a factor that sets them apart and causes friction with their fellow soldiers. 

1081. William's bloody conquest is over and Britain is under Norman rule. But one bastion of resistance remains: Wales. A divided land where brother fights brother and kings battle for power. The English use this to further their own ends, and while one king is tempted by an offer he cannot resist, the others wage war over long-forgotten feuds.

989 AD. Alfred the Great’s dream of a united England has been forged by his daughter Aethelfaed and grandson, King Aethelstan. The Vikings have been expelled from York following the death of Erik Bloodaxe, and for two generations there has been peace between Saxon and Dane. A new Viking warlord Olaf Tryggvason seeks revenge for Bloodaxe's death and the slaughter that followed, and has set his sights on a fresh assault on England’s shores. With Skarde Wartooth they set sail for Saxon lands, hungry for glory, conquest and vengeance.