The Secret Agent Training Manual: How to Make and Break Top Secret Messages: A Companion to the Secret Agents Jack and Max Stalwart Series (The Secret Agents Jack and Max Stalwart Series, 1)

Secret Agents Jack and Max Stalwart: Book 1: The Battle for the Emerald Buddha: Thailand (The Secret Agents Jack and Max Stalwart Series)

Secret Agents Jack and Max Stalwart: Book 2: The Adventure in the Amazon: Brazil (The Secret Agents Jack and Max Stalwart Series)

Secret Agent Jack Stalwart: Book 14: The Mission to Find Max: Egypt (The Secret Agent Jack Stalwart Series)

Secret Agent Jack Stalwart: Book 13: The Hunt for the Yeti Skull: Nepal (The Secret Agent Jack Stalwart Series)

Secret Agent Jack Stalwart: Book 12: The Fight for the Frozen Land: The Arctic (The Secret Agent Jack Stalwart Series)

Secret Agent Jack Stalwart: Book 11: The Theft of the Samurai Sword: Japan (The Secret Agent Jack Stalwart Series)

Secret Agent Jack Stalwart: Book 10: The Quest for Aztec Gold: Mexico (The Secret Agent Jack Stalwart Series)

The Caper of the Crowned Jewels (Secret Agent Jack Stalwart Book 4)

Secret Agent Jack Stalwart: Book 3: The Mystery of the Mona Lisa: France (The Secret Agent Jack Stalwart Series)

Secret Agent Jack Stalwart: Book 9: The Deadly Race to Space: Russia (The Secret Agent Jack Stalwart Series)