The Deadliest Dare / [ISBN: 9780671674786 ] When Bayport is hit by a rash of increasingly dangerous practical jokes in which their friend Biff may be involved, the Hardy Boys investigate a secret society led by a reputed hitman... When Bayport is hit by a rash of vicious pranks, Frank and Joe investigate. They aren't sure the tricks are meant to be funny, especially the mysterious phone tip that leads them to a spooky mansion that happens to be on fire. After dousing the blaze, the brother detectives find a vital clue. The trail leads them to a bizarre club dedicated to danger. But the pranks may be only a cover for an ultraserious game plan. Soon the young sleuths find themselves playing straight men for a deadly practical joke -- where the punch line is murder! ===== https://hardyboys.us/hbcasefiles.htm
