Capital Mysteries #8: Mystery at the Washington Monument (A Stepping Stone Book(TM))

Calendar Mysteries #1: January Joker (A Stepping Stone Book(TM))

Capital Mysteries Collection (A Stepping Stone Book(TM))

A to Z Mysteries: The Zombie Zone (A Stepping Stone Book(TM))

The Invisible Island (A Stepping Stone Book(TM))

Calendar Mysteries #2: February Friend (A Stepping Stone Book(TM))

A Thief at the National Zoo (Capital Mysteries (Pb))