This little book contains three short alchemical manuscripts from the 1th and 17th centuries. All three have been rendered into modern English.First there is the Immortal Liquor; Alkahest, of Philalethes, showing the nature of and creation of the infamous precursor to the stone of the philosophers. Second to this is a tract on the Everburning Lights of Trithemius- a second-hand account of his phosphorescent capabilities. Finally, there is Pontanus' Philosophic Fire, containing the secret of the alchemical process with regards to the secretive and all-important fire used during the work itself.