A list of events in 1998 related to The Hardy Boys.
- Nancy Drew and Hardy Boys SuperMystery #35 Operation Titanic released.
- The Hardy Boys #148 The Ice-Cold Case released.
- A Nancy Drew and Hardy Boys SuperMystery series is discontinued, with the publication of #36 Process of Elimination.
- The Hardy Boys #149 The Chase for the Mystery Twister released.
- The Hardy Boys Casefiles Collector's Edition 1, featuring Diplomatic Deceit, Flesh and Blood and Fright Wave, is released.
- The Hardy Boys #150 The Crisscross Crime released.
- The Hardy Boys #151 The Rocky Road to Revenge released.
- The Hardy Boys Casefiles Collector's Edition 2, featuring Rock 'N' Revenge, Choke Hold, Uncivil War, is released.
- The Hardy Boys #152 Danger in the Extreme released.
- The Hardy Boys #153 Eye on Crime released.
1920s: 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929