Guardians of the Holy Grail reveals these mysteries:
* What and where the Holy Grail is.
* The Holy Grail Mysteries of the Knights Templar
* The Alchemical Rites of the Knights Templar
* The Cup of Christ and the Holy Shroud
* The Spear of Destiny
* The Chintamani "Stone of Heaven"
* Mary Magdalene and the Holy Grail Bloodline
* The Secret Messiah and Savior of the Knights Templar
* Baphomet, the Head of John the Baptist
* The Mystery of the Fisher King & the Grail Castle
* Rosslyn Chapel, Reliquary of the Holy Grail