The Secret of Hangmans Inn

When Joe Driscoll, a loyal veteran worker at the Brentwood Weekly Advance, disappears Ken and Sandy begin an investigation. When their initial sleuthing turns up tantalizing tidbits of information, Brentwood Police Chief Andy Kane joins in. Then when Pop receives a card purportedly from Joe and postmarked Crandon, Ken and Sandy journey to that nearby town and track down "the Black One". There they also run into the mysterious antique dealer De Lacey. Following up Joe's hobby of bird watching, the intrepid duo stake out a nearby marsh. There, more clues turn up that involve a freight train. Shortly after it is Sandy who recalls that an abandoned inn near the outskirts of Camden (Hangman's Inn), would be a likely hide-out for the gang that kidnapped Joe Driscoll. To their utter amazement, Ken and Sandy find Pop and Bert held captive there ! When the two would-be rescuers are added to the prisoners, things looked bleak indeed. How all three Allens, Ken, and Joe escape the clutches of the train robbers and eventually trap them, make "The Secret of Hangman's Inn" one of Ken and Sandy's most difficult cases to date.