Series: The Hardy Boys

Hardy Boys 01: the Tower Treasure

Hardy Boys 02: the House on the Cliff

Hardy Boys 03: the Secret of the Old Mill

Hardy Boys 05: Hunting for Hidden Gold

Hardy Boys 06: the Shore Road Mystery

Hardy Boys 04: the Missing Chums

Hardy Boys 07: the Secret of the Caves

Hardy Boys 08: the Mystery of Cabin Island

Hardy Boys 09: the Great Airport Mystery

Hardy Boys 10: What Happened at Midnight

Hardy Boys 11: While the Clock Ticked

Hardy Boys 12: Footprints Under the Window

Hardy Boys 13: the Mark on the Door