Duncan Campbell is an NSA agent, historian and Middle East specialist. His life changes on September 6, 2001: he loses the woman he loves, is betrayed by his superiors and finds himself plunged into the heart of a medieval conflict that history books have never mentioned... He can only count on his good knowledge of the Islamic world and 15th century Europe to try to avoid the annihilation of two civilizations by trying to find the path that leads to reconciliation and peace between peoples... Here is a fascinating alternate history through which Roger Seiter and Simone Gabrielli return to the origins of a conflict that has been raging in two worlds for centuries, to try to understand, but also to dream of peace.