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A list of The Hardy Boys trilogies.
- Operation Phoenix Trilogy (June 1992-August 1992)
- Ring of Evil Trilogy (June 1993-August 1993)
- Bayport Corruption Storyline (unofficial; October 1987-September 1991)
- Murder House Trilogy (May 2008-September 2008)
- Double Danger Trilogy (November 2008-March 2009)
- Galaxy X Trilogy (May 2009-September 2009)
- Killer Mystery Trilogy (November 2009-January 2010)
- Lost Mystery Trilogy(May 2010-January 2011)
- Deathstalker Trilogy(May 2011-January 2012)