The house on the cliff by Dixon, Franklin W
Hunting for hidden gold by Dixon, Franklin W
The tower treasure by Dixon, Franklin W
The hidden harbor mystery by Dixon, Franklin W
The disappearing floor by Dixon, Franklin W
The great airport mystery by Dixon, Franklin W
The Bombay boomerang by Dixon, Franklin W
The Stone Idol by Dixon, Franklin W
The clue of the screeching owl by Dixon, Franklin W
The crisscross shadow by Dixon, Franklin W