Screenwriter and director Nicholas Meyer, author of the novel “The Seven Percent Solution,” returns to Sherlock Holmes with “The Adventure of the Peculiar Protocols.” Hosted by Richard Wolinsky. He also discusses his work in film and television, including the first season of Star Trek: Discovery.

Robert Macfarlane, whose latest book is “Underland: A Deep Time Journey” is interviewed by host Richard Wolinsky. The author of several books, including “Mountains of the Mind” and “The Old Ways,” Robert Macfarlane discusses his latest work, a travelogue through caves, glacial crevices, mines, and catacombs, as he examines the world below our feet.