English: V. CLAVIS, the fifth key, engraved by Matthaeus Merian (1593–1650). From Tripus aureus, hoc est, Tres tractatus chymici selectissimi, nempe I. Basilii Valentini, benedictini ordinis monachi, Germani, practica una cum 12. clavibus et appendice, ex germanico; II. Thomae Nortoni, angli philosophi crede mihi seu ordinale, ante annos 140. ab authore seriptum, nunc ex anglicano manuscripto in latinum translatum, phrasi eujusque authoris ut et sententia retenta; III. Cremeri cuiusdam abbatis westmonasteriensis angli testamentum, hactenus nondum publicatum, nunc in diversarum nationum gratiam editi, et figuris cupro affabre incisis ornati operâ et studio. Michaelis Maieri, phil. et med. d. com. p. &c. Francofurti, apud Hermannum à Sande. MDCLXXVII. as published in the collection Musaeum hermeticum, reformatum et amplificatum. Francofurti : Apud Hermannum à Sande, 1678. In Latin.

The part in question 'I. Basilii Valentini, benedictini ordinis monachi, Germani, practica una cum 12. clavibus et appendice, ex germanico;' or 'Basil Valentine, a German monk of the Benedictine order, one study with the twelve keys and the appendix, [translated] from the German.'

On the right a woman stands beside a rectangular plinth (or possibly a furnace, though no flames are visible). A flask on the plinth contains liquid from which fumes are rising. The women holds a heart from which grows a seven-blossomed rose. The top of the flask either goes behind or connects to the woman's head. Beside the woman stands an alchemist with bellows. Flames emerge from his mouth and the top of his head. In front of the plinth or furnace a blindfold cupid aims an arrow with his bow at the woman. On the left stands a lion with a crown above his head. His left paw, claws extended, reaches out towards the cupid. Above the lion shines a brilliant sun.