Capital Mysteries #1: Who Cloned the President?

Capital Mysteries #7: Trouble at the Treasury

Capital Mysteries #2: Kidnapped at the Capital

Capital Mysteries #6: Fireworks at the FBI

Capital Mysteries #5: Who Broke Lincoln's Thumb?

Capital Mysteries #3: The Skeleton in the Smithsonian

Capital Mysteries #8: Mystery at the Washington Monument

Capital Mysteries #4: A Spy in the White House

The White City: Book 3 of The Clockwork Dark

The Wolf Tree: Book 2 of The Clockwork Dark

Exploring According to Og the Frog

Life According to Og the Frog

Wildlife According to Og the Frog

Capital Mysteries #12: The Ghost at Camp David

The Nine Pound Hammer: Book 1 of The Clockwork Dark

Capital Mysteries #9: A Thief at the National Zoo

Capital Mysteries #10: The Election-Day Disaster