By the end of 1448, Sultan Murad II is poised to invade Hungary, the only kingdom now standing between him and the rest of Christendom. Knowing about this, Sir Gregor Dahr Altair counsels the Regent of Hungary, Johann Hunyadi, to march against Edirne. It is a desperate act, but the only way to force the Sultan to turn his vast army around and defend the Imperial City of the Ottoman Empire. In their way to join Hunyadi¿s army, Sir Altair and Lorian search for Silvan, who was rescued by the Ottoman spy, Thor, from the burning Ottoman encampment during the failed siege of Hermannstadt. Thor¿s tracks, take them across the mountains into Wallachia, and to the City of Targoviste. The city is in turmoil, its citizens ready to rise against the Ottomans who came to place on the throne Prince Vlad Dracul, and to prevent the Wallachians from joining Hunyadi¿s army. When Lorian is accused of disloyalty against the new voievod, Sir Gregor decides to seek his pardon from Vlad himself. But the young prince is held in the fortress, and the only way to see him is to enter through a secret tunnel known only to Ilea. During the escapade, Sir Altair learns of a plot to assassinate Hunyadi, and that Thor already left the city to join the Ottoman army. Too late to find Silvan, they rush to save Hunyadi, before the climatic Second Battle of Kosovo, where the fortune of the Kingdom of Hungary will be decided.Wells, Florian Stone is the author of 'Field of the Blackbirds : Merchants of Time', published 2010 under ISBN 9780979957710 and ISBN 0979957710.