'The Most Holy Trinosophia' is an esoteric book of reputedly great power. It is said to have been written by the Comte de St.-Germain, a mysterious 18th century adept, confidant of kings, prophet, maker of diamonds, and alchemist extraordinaire, whose death has never been verified and whom several witnesses swore to have seen, looking as young as ever, years after his apparent demise. This edition of 'The Most Holy Trinosophia' contains twenty-four additional signs and illustrations, omitted from the original 1933 publication, all of which are needful to decipher the message hidden within this recondite and occult masterpiece.