Know this: I, Mercurius, have set down a full, true and infallible account of the Great Work. But I give you fair warning that unless you seek the true philosophical gold and not the gold of the vulgar; unless your heart is fixed with unbending intent on the true Stone of the Philosophers, unless you are steadfast in your quest, abiding by God's laws in all faith and humility and eschewing all vanity, conceit, falsehood, intemperance, pride, lust and faintheartedness, read no further lest I prove fatal to you. REVIEWS: 'Mercurius is a book written at least as much to elucidate as to entertain. It is probably the most explicit account of the alchemical art ever published - it presents a strong argument for the perfectibility of man and against the species of bloodless asceticism which drives a wedge between spiritual and corporeal love.' THE LITERARY REVIEW 'Each of its 479 mystical pages needs to be closely read, for the dramatic turns in this extraordinary alchemical novel are so well hidden that one dare not skip a single sentence for fear of missing an essential key to the developing mystery. It is rare to find an author who can expound with such authority on a subject whose very existence is only to a few initiates. This book is uniquely useful. There is no rival to it.' FORTEAN TIMES