Hostage of Time
E. D. Cask
Beacons of Time (1)
Conquering His Captive
Ivy Barrett
Captives of Stilox (3)
The Short-Wave Mystery
Franklin W. Dixon
The Hardy Boys Mystery Stories (24)
Restriction
Michael Anderle & CM Raymond & LE Barbant
Ghost Hope
Ripley Patton
The PSS Chronicles (4)