Spring Reading Challenge
Genres

Ace Double


Ace Double Books

The Dragon Masters / The 5 Gold Bands (Ace Double, 16640)
Son of the Tree / The Houses of Iszm (Ace Double, 77525)
The Man with Nine Lives; A Touch of Infinity
The Time Mercenaries / Anthropol (Ace SF Double, H-59)
The Hand of Zei
Voodoo Planet (Solar Queen, #3)
Off Center/The Rithian Terror
The Herod Men / Dark Planet (Ace Double 13805)
The Electric Sword Swallowers / Beyond Capella
The Kar-Chee Reign / Rocannon's World
Battle on Venus / The Silent Invaders
The Secret of Sinharat / People of the Talisman
King Of The Fourth Planet / Cosmic Checkmate
Who Speaks of Conquest / The Earth in Peril (Ace Double, D-205)
The Atlantic Abomination / The Martian Missile
More ace double books...