Books
Capital Mysteries #4: A Spy in the White House
2004
Capital Mysteries #5: Who Broke Lincoln's Thumb?
2005
Capital Mysteries #7: Trouble at the Treasury
2006
Capital Mysteries #3: The Skeleton in the Smithsonian
2003
Capital Mysteries #6: Fireworks at the FBI
2006
Capital Mysteries #8: Mystery at the Washington Monument
2007