Score: 10

The Yellow Feather Mystery
The Mystery of the Spiral Bridge
The Sting of the Scorpion

Score: 9

The Shore Road Mystery
What Happened at Midnight
The Secret of Skull Mountain
The Clue of the Screeching Owl
The Arctic Patrol Mystery
The Firebird Rocket

Score: 8

While the Clock Ticked
The Sinister Signpost
The Disappearing Floor
The Melted Coins
The Secret Panel
The Hooded Hawk Mystery
The Ghost at Skeleton Rock
The Mystery of the Aztec Warrior
Mystery of the Whale Tattoo
The Masked Monkey
The Jungle Pyramid

Score: 7

The Missing Chums
The Mystery of Cabin Island
The Great Airport Mystery
A Figure in Hiding
The Short-Wave Mystery
The Phantom Freighter
The Sign of the Crooked Arrow
The Wailing Siren Mystery
The Secret of Pirate’s Hill
Mystery of the Desert Giant
The Viking Symbol Mystery
The Haunted Fort
The Secret Agent on Flight 101
The Bombay Boomerang
The Shattered Helmet
The Mysterious Caravan

Score: 6

The House on the Cliff
The Secret of the Old Mill
Footprints Under the Window
The Hidden Harbor Mystery
The Secret Warning
The Twisted Claw
The Flickering Torch Mystery
The Secret of the Lost Tunnel
The Secret of Wildcat Swamp
The Crisscross Shadow
The Clue in the Embers
The Mystery of the Chinese Junk
Danger on Vampire Trail
The Clue of the Hissing Serpent

Score: 5

The Tower Treasure
Hunting for Hidden Gold
The Secret of the Caves
The Mark on the Door
The Clue of the Broken Blade
Mystery at Devil’s Paw
The Witchmaster’s Key

Score: 4

Mystery of the Flying Express