Kate Wolf and Medaya Ocher are joined by Rivka Galchen, whose new novel, Everyone Knows Your Mother Is a Witch, is set in the Holy Roman Empire in 17th-century Germany, amid the plague and the Thirty Years’ War. It fictionalizes the real-life story of Katharina Kepler, the mother of astronomer and mathematician Johannes Kepler. Katharina, an elderly widow who seems to care most for her cow Chamomile, is accused of being a witch by another woman in the small town of Leonberg. Soon everyone in town is testifying to Katharina’s wickedness. Her own side of the story is told by her neighbor, Simon, who acts as her guardian — but as a bookseller later tells him, “People don’t like an old lady’s story.” The novel is told through both fictional testimonials as well as actual translated historical documents. Also, Zakiya Dalila Harris, author of The Other Black Girl, returns to recommend Raven Leilani’s acclaimed first novel, Luster.