The Lost Continent
River Rivals
The Dragon's Secret
Operation Airlift
The Night Raiders
The Golden Dragon
Shipwreck
Mission Accomplished
The Blockade Runners
The Last Hope
Son of the Sahara
The Conspirators
Gun Runners
Counter Plot
Ambush
Trapped
The Valley of Ghosts
The Ghost Army
Daylight Robbery
Five Have a Mystery to Solve
The Life of Galileo
High Tide
The Hunt in the Woods
Whispering Island
The Crusader's Treasure
The Secret Door
The Castaways
