Hardy Boys 09: The Great Airport Mystery (The Hardy Boys Book 9)
Hardy Boys 14: The Hidden Harbor Mystery (The Hardy Boys)
Hardy Boys 23: The Melted Coins (The Hardy Boys)
Hardy Boys 12: Footprints Under the Window (The Hardy Boys)
Hardy Boys 29: The Secret of the Lost Tunnel (The Hardy Boys)
Hardy Boys 11: While the Clock Ticked (The Hardy Boys)
