Cadwalader Ringgold:
Alan Burt Akers - Prescot of Antares - book 26: Allies of Antares - full cover - artist Clyde Caldwell
Cadwalader Ringgold:
Alan Burt Akers - Prescot of Antares - book 27: Mazes of Scorpio - full cover - artist Richard Hescox
Cadwalader Ringgold:
Alan Burt Akers - Prescot of Antares - full cover - book 28: Delia of Valia - full - artist Ken W. Kelly