The Book of the Most Precious Substance

In Sara Gran's thrilling new novel, a down-on-her-luck rare-book dealer named Lily Albrecht embarks on a dangerous quest to find the elusive 17th-century manual on sex magic, rumored to hold unimaginable power. Her journey takes her across the globe, exposing her to the secret worlds of the wealthy and their dark rituals. An addictive blend of mystery, seduction, and intrigue, this story explores the lengths one will go to realize their desires.