Mystery Map
Franklin W. Dixon
Infinity Clue
What Happened at Midnight
The Secret of the Caves
The Great Airport Mystery
The Melted Coins
Mystery of the Flying Express
The Sinister Signpost
The Arctic Patrol Mystery
The Twisted Claw
The Clue of the Broken Blade
While the Clock Ticked
The Secret Agent on Flight 101
The Mystery of Cabin Island
The Disappearing Floor
The Viking Symbol Mystery
The Clue of the Screeching Owl
Mystery of the Desert Giant
The Secret Warning
The Tower Treasure
The House on the Cliff
Mystery at Devil's Paw
The Ghost at Skeleton Rock
The Mark on the Door
The Hooded Hawk Mystery
The Shore Road Mystery
The Secret of Pirates' Hill
The Mystery of the Chinese Junk
The Missing Chums
The Clue in the Embers
Hunting for Hidden Gold
The Yellow Feather Mystery
The Crisscross Shadow
The Secret of Wildcat Swamp
The Wailing Siren Mystery
The Secret of the Lost Tunnel
The Sign of the Crooked Arrow
The Secret of Skull Mountain
The Phantom Freighter
The Secret Panel
The Short-Wave Mystery
Short (1)
The Flickering Torch Mystery