When the falcon has flown, the mountain lion will charge from the east, and all Byzantium will quake. Only one man can save the empire . . . the Haga! 1046 AD. The Byzantine Empire teeters on full-blown war with the Seljuk Sultanate. In the borderlands of Eastern Anatolia, a land riven with bloodshed and doubt, young Apion's life is shattered in one swift and brutal Seljuk night raid. Only the benevolence of Mansur, a Seljuk farmer, offers him a second chance of happiness. Yet a hunger for revenge burns in Apion's soul, and he is drawn down a dark path that leads him right into the heart of a conflict that will echo through the ages.

Stay strong, Haga, for the Golden Heart will rise in the west. At dawn, he will wear the guise of a lion hunter. At noon, he will march to the east as if to conquer the sun itself. At dusk, you will stand with him in the final battle, like an island in the storm . . . 1068 AD: the armies of the Seljuk Sultanate tear at Byzantium's borders, poised to strike the death blow that will bring all Anatolia under their yoke. Alp Arslan's armies grow stronger with every passing season, while the beleaguered Byzantine soldiers defend for their lives, the hope in their hearts guttering its last. This war has been Apion's mistress for many years, casting a dark shadow across his soul. When the mysterious crone comes to him, she can offer him only a glimmer of light. But at the darkest of moments, the smallest chink of light can be blinding. It will sweep Apion into the heart of the empire, Constantinople, and then onto the arid plains of Syria. It will taunt him with trust, betrayal, intrigue, love and brutal conflict. But, above all, it will offer him hope.

The storm is upon us, Haga. The answers you seek dance within its wrath . . . 1071 AD. Emperor Romanus Diogenes has rekindled the guttering flame of Byzantium. Yet in the eastern borderlands, two vital strongholds hang in the balance. Manzikert and Chliat must be won to secure the empire’s fragile frontiers and vanquish the would-be usurpers who covet the imperial throne. But Sultan Alp Arslan and his vast Seljuk armies look to those twin fortress-towns also, resolute on seizing them first. Apion rides by the emperor’s side as they march east, marshalling Byzantium’s armies for the conflict that is to come. He knows only too well that the threat posed by the Sultan’s hordes is well-matched by malevolent forces within the Byzantine ranks. Thus, the road to war is a savage one, but one he cannot refuse. For at its end, Fate beckons, taunting him with a choice of two futures. On the plains of Manzikert, one great power will rise and another will fall. On the plains of Manzikert, Apion will face the storm.