When James Dallas Egbert III was reported missing from his college dorm in 1979, one of America's most flamboyant private detectives was summoned to solve the case. "Dallas" faced the same problems as many teenagers, but P.I. William Dear stoked fears that he might have fallen under the evil spell of a mysterious and sinister game: Dungeons & Dragons...

Tim Harford returns with brand new episodes of Cautionary Tales on January 10th. In the meantime, Merry Christmas from the Cautionary Tales team!

For a full list of sources, see the show notes at timharford.com.