On today’s episode of Modern Notion Daily, we talk with guest Gillian O’Brien. O’Brien’s new book, Blood Runs Green: The Murder That Transfixed Gilded Age Chicago (University of Chicago Press, March 2015), tells the largely forgotten story of the murder of Dr. P. H. Cronin in the late 19th century. We also visit a taxidermy class in Brooklyn, and talk with contributing editor Mark Hay about the elves of Iceland.

Music this hour: