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- One of Our Elephants is Missing
- Pepper and D.D
- Peter
- Reginald Glut
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- Sally
- Salty Bucks
- Sam Kiley
- Sandor
- Sheikh Rasheed
- Sheriff Bagley
- State Department man
- The Amazing Heist
- The Case of the Lighthouse Mouse
- The Circus Caper
- The Disappearing Airport Caper
- The Dissolving Statue Caper
- The Green Thumb Caper
- The Missing Pig Caper
- The Paper Shaper Caper
- The Prehistoric Monster Caper
- The Real Gone Gondola
- The Solar Energy Caper
- The Vanishing Train Caper
- The Walking House Caper
- The Wild Seaweed Smuggling Caper
- Tom Coldwell
- Tonio
- Who's to Blame For the Empty Frame?
- Woofer and Wimper
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