He was a slave, a soldier, an assassin of the Caliphate of Egypt. Little did he know that he will be the instigator of the greatest war the world has ever seen. How much do you know about the Crusades? How much do you know about the Assassins? Would you like to journey to Cairo and Rome to find out? Would you like to see how one man managed to trigger one of the worst religious war of the twelve century? Come travel with me and find out. The Emissary is a story about a man, a slave, an assassin born in Cairo in 1055. He was sent as an ambassador by the Fatimid Caliph to the Pope in Rome to try to solicit western help in fighting the Seljuk Turks. The Emissary would grow to be an instigator to the holy Christian Crusades. A war whose echo still resonates up to this day.