St. Irvyne by Percy Bysshe Shelley

ST. IRVYNE follows the story of Wolfstein, a loner and outcast, and Ginotti a brigand and alchemist interested in discovering the secret of immortality, whatever the cost. After being captured by bandits, Wolfstein falls in love with a fellow captive and escapes after befriending Ginotti. At the abbey of St. Irvyne in France, Ginotti promises to reveal the truth of immortality to Wolfstein, but he must pay a terrible price for the knowledge.