This work, by Albert Pike, Grand Commander of the Supreme Council of the Scottish Rite of Freemasonry from 1859 until his death in 1891, picks up where Pike's other great work, Morals and Dogma of the Scottish Rite, leaves off. Pike believed that the early Freemasons had concealed the real secrets of Freemasonry. In this invaluable volume, Albert Pike cracks the door on the Sanctum Sanctorum, for those who have eyes to see.