The Sovereign Adventure endeavours to show that the story of the Grail in all its different versions is neither romantic fiction nor the property or tradition of one culture. It belongs to mankind and every race of mankind has its own Grail story. The Quest is neither more nor less than the way of man towards a higher state of being, that is the discovery of the divine in the universe and within his own being. It is shown in saga fairy tale, in great poetry, psychology and the esoteric teaching of every worthwhile tradition. It is in fact the way of white magic described in picture language. The author hopes that this book will send many of the young out as Grail knights of our time, strong, enlightened and tolerant of the other knight who rides across to the castle from different bridge. They hear the trumpet call and are impatient and rebellious against a deaf world. May they find the real adventure which, though demanding and exacting, will quench there thirst in the end. Scientist and artist, occultist and every man and every woman, can find their own bridge to the Grail castle and begin the quest from wherever they are. They can all share in the sovereign adventure, the quest for man's goal and the finding of the way that leads to it.