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#1, 1950
The Tower Treasure |
#2, 1950
The House on the Cliff |
#3, 1951
The Secret of the old Mill | #4, 1951
Missing Chums |
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#5, 1951
Hunting for Hidden Gold | #6, 1951
The Shore Road Mystery | #7, 1952
The Secret of the Caves | #8, 1952
The Mystery of Cabin Island |
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#9, 1952
The Great Airport Mystery | #10, 1952
What happened at Midnight | #11, 1952
While the Clock Ticked | #12, 1953
Footprints under the Window |
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#13, 1953
Mark on the Door | #14, 1953
The Hidden Harbor Mystery | #15, 1953
Sinister Signpost | #16, 1953
A Figure in Hiding |
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#17, 1954
The Secret Warning | #18, 1954
The Twisted Claw | #19, 1954
The Disappearing Floor | #20, 1954
The Mystery of the Flying Express |
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#21, 1954
The Clue of the Broken Blade | #22, 1955
The Flickering Torch Mystery | #23, 1955
The Melted Coins | #24, 1955
The Shortwave Mystery |
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#25, 1955
The Secret Panel | #26, 1956
The Phantom Freighter | #27, 1956
The Secret of Skull Mountain | #28, 1956
The Sign of the Crooked Arrow |
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#29, 1956
The Secret of the Lost Tunnel | #30, 1956
The Wailing Siren Mystery | #31, 1957
The Secret of Wildcat Swamp | #32, 1957
The Crisscross Shadow |
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#33, 1957
The Yellow Feather Mystery | #34, 1958
The Hooded Hawk Mystery | #35, 1958
The Secret of Pirat's Hill | #36, 1958
The Clue in the Embers |
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#37, 1959
The Ghost at Skeleton Rock | #38, 1960
The Mystery at Devil's Paw | Detektivhåndboken, 1959
The Hardy Boys' Detective Handbook |
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