The House on the Cliff
Franklin W Dixon
The Secret of the Old Mill
The Missing Chums
Hunting for Hidden Gold
The Shore Road Mystery
The Secret of the Caves
The Great Airport Mystery
What Happened at Midnight
While the Clock Ticked
Footprints Under the Window
The Mark on the Door
The Hidden Harbor Mystery
The Sinister Signpost
A Figure in Hiding
The Secret Warning
The Twisted Claw
The Disappearing Floor
The Flickering Torch Mystery
The Short-Wave Mystery
The Wailing Siren Mystery
The Crisscross Shadow
The Infinity Clue
Three Ring Terror
The Ghost At Skeleton Rock
The Mystery Of The Aztec Warrior
The Haunted Fort
The Mystery Of The Spiral Bridge
The Bicycle Thief
Extreme Danger
The Prime-Time Crime
Crime in the Cards
The Mystery of the Black Rhino
Kickoff to Danger
Daredevils
The End of the Trail
The Lure of the Italian Treasure
The Giant Rat of Sumatra
Terror at High Tide
Lost in Gator Swamp
In Plane Sight
Passport to Danger
The Alaskan Adventure
Danger in the Extreme
High-Speed Showdown