Capital Mysteries #1: Who Cloned the President?

A to Z Mysteries: The Absent Author

A to Z Mysteries: The Quicksand Question

A to Z Mysteries: The Haunted Hotel

A to Z Mysteries: The Zombie Zone

A to Z Mysteries: The Bald Bandit

A to Z Mysteries: The Missing Mummy

A to Z Mysteries Super Edition #10: Colossal Fossil

Capital Mysteries #7: Trouble at the Treasury

A to Z Mysteries: The Jaguar's Jewel

A to Z Mysteries: The Deadly Dungeon

A to Z Mysteries: The Ninth Nugget

A to Z Mysteries: The Empty Envelope

A to Z Mysteries: The Invisible Island

A to Z Mysteries: The Goose's Gold

A to Z Mysteries: The Kidnapped King

A to Z Mysteries: The Vampire's Vacation

A to Z Mysteries: The Orange Outlaw

A to Z Mysteries: The Lucky Lottery