Was one of the great novels of the Enlightenment written by a man who thought he was a werewolf?

Surreal, mysterious and with an outlandish origin story, Jan Potocki’s The Manuscript Found in Saragossa has amassed a cult following that includes Salman Rushdie and Jerry Garcia. But it’s the book’s global humanism makes it relevant now, say the curators of a new exhibition

A young Walloon officer called Alphonse van Worden travels through the Sierra Morena on his way to Madrid to join the Spanish army. Along the way he has an erotic encounter with two demonic Moorish sisters, falls foul of shape-shifting apparitions and is tested by a Jewish Kabbalist attempting to use mystical formulas to control spirits and decipher the universe.