Ron Roy
- Turkey Trouble on the National Mall
- The Ghost at Camp David
- The Secret at Jefferson's Mansion
- Detective Camp
- August Acrobat
- July Jitters
- November Night
- The Election-Day Disaster
- Trapped on the D.C. Train!
- A Thief at the National Zoo
- September Sneakers
- Mystery at the Washington Monument
- Trouble at the Treasury
- June Jam
- The Castle Crime
- Fireworks at the FBI
- May Magic
- The Skeleton in the Smithsonian
- Who Broke Lincoln's Thumb?
- The New Year Dragon Dilemma
- April Adventure
- The Unwilling Umpire
- The Runaway Racehorse
- The Haunted Hotel
- February Friend
- Kidnapped at the Capital
- The Panda Puzzle
- Sleepy Hollow Sleepover
- The Ninth Nugget
- Who Cloned the President?