Galactic Riddle 66109 SF Clark Darlton Perry Rhodan 9: Quest thru Time and Space 66110 SF Kurt Mahr Perry Rhodan 10: The Ghosts of Gol 66111 SF Kurt Mahr Perry Rhodan 11: The Planet of the Dying Sun 66112 SF Clark Darlton Perry Rhodan 12: The Rebels of Tuglan 66113 SF K.H. Scheer Perry Rhodan 13: The Immortal Unknown 66114 SF Kurt Mahr Perry Rhodan 14: Venus in Danger 66115 SF Clark Darlton Perry Rhodan 15: Escape to Venus 66116 SF W.W. Shols Perry Rhodan 16: Secret Barrier X 66117 SF Kurt Mahr Perry Rhodan 17: The Venus Trap 66118 SF Kurt Mahr Perry Rhodan 18: Menace of the Mutant Master (second printing) 66119 SF Clark Darlton Perry Rhodan 19: Mutants vs. Mutants (second printing) 66121 SF W.W. Shols Perry Rhodan: Robot Threat: New York / Hans Kneifel Atlan #3: Pale Country Pursuit 66128 SF K.H. Scheer Atlan #4: The Crystal Prince / Clark Darlton Atlan #5: War of the Ghosts 66129 SF Clark Darlton Perry Rhodan: In the Center of the Galaxy (1978) 66141 SF Walt Richmond and Leigh Richmond Phase 2 66160 SF Nick Kamin Earthrim / Walt Richmond and Leigh Richmond Phoenix Ship (December 1969) 66201 SF Joanna Russ Picnic on Paradise 66320 SF Robert E. Howard Pigeons from Hell (1978) 66502 SF Edgar Rice Burroughs Pirates of Venus 66503 SF Edgar Rice Burroughs Pirates of Venus 66505 SF Edgar Rice Burroughs Pirates of Venus 66509 SF Edgar Rice Burroughs Pirates of Venus 66525 SF Murray Leinster The Mutant Weapon / Pirates of Zan (October 1971) 66833 SF Andre Norton Plague Ship (1973) 66900 SF Jack Vance Planet of Adventure#2: Servants of the Wankh 66901 SF Jack Vance Planet of Adventure#3: The Dirdir (1969) 66902 SF Jack Vance Planet of Adventure#4: The Pnume (1970) 66952 SF Ursula K. Le Guin Planet of Exile 66995 SF Mack Reynolds The Rival Rigelians / Planetary Agent X (September 1973) 67020 SF Marion Zimmer Bradley The Planet Savers 67021 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones 67025 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones 67026 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones 67027 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones 67060 SF John Jakes The Planet Wizard 67061 SF John Jakes The Planet Wizard 67110 NA Jack Vance (as John Holbrook