The Hardy Boys Lot of 18 Franklin W Dixon Blue Spine Books HC Vintage
1- The Tower Treasure
2 - The House on the Cliff
4 - The Missing Chums
7 - The Secret of the Caves
8 - The Mystery of Cabin Island
9 - The Great Airport Mystery
10 - What Happened at Midnight
12 - Footprints Under the Window
21 - The Clue of the Broken Blade
26 - The Phantom Freighter
27 - The Secret of Skull Mountain
35 - The Clue in the Embers
36 - The Secret of Pirates Hill
38 - Mystery at Devil's Paw
40 - Mystery of the Desert Giant
45 - Mystery of the Spiral Bridge
47 - Mystery of the Whale Tattoo
54 - The Mysterious Caravan