A book about one of the most mysterious pages of medieval history - about the rise and death of the spiritual-knightly Order of the Templars in the tragic for them and for all participants in the Crusades of the 13th century. There is extensive scientific and popular literature about the Knights of the Temple, but the secret of the Order has passed the complex path from the brotherhood of the Poor Knights, designed to protect pilgrims going to the Holy Places, to the richest organization, has not been revealed at this point in time. The famous French historian Georges Bordonov is trying to find the truth, using an original form of presenting material in his scientific research.