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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)
- Double Danger Trilogy (November 2008-March 2009)
- Killer Mystery Trilogy (November 2008-January 2010)
- Lost Mystery Trilogy (May 2010-January 2011)
- 1. Children of the Lost
- 2. The Lost Brother
- 3. Forever Lost
- Deathstalker Trilogy (May 2011-2012)
- 1. Movie Menace
- 2. Movie Mission
- 3. TBA
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