Hardy Boys 15: The Sinister Signpost (The Hardy Boys)
Hardy Boys 17: The Secret Warning (The Hardy Boys)
Hardy Boys 13: The Mark on the Door (The Hardy Boys)
Hardy Boys 19: The Disappearing Floor (The Hardy Boys)
Hardy Boys 18: The Twisted Claw (The Hardy Boys)
Hardy Boys 29: The Secret of the Lost Tunnel (The Hardy Boys)
