Lester Del Rey: 66 books

Bruce Gordon was an ex-fighter, ex-gambler, ex-cop, ex-reporter, and now he was an ex-patriot of Earth. Security shipped him to Mars with a knife, 100 credits, and a yellow card that meant no return. An SF novel that would appeal to Mickey Spillane fans, Police Your Planet features lots of hands-on...

He didn’t expect to be last—but neither did he anticipate the horror of being the first!

There was nothing, especially on Earth, which could set him free—the truth least of all!

Fear cut through the unconscious mind of Wilbur Hawkes. With almost physical violence, it tightened his throat and knifed at his heart. It darted into his numbed brain, screaming at him. He was a soft egg in a vast globe of elastic gelatine. Two creatures swam menacingly through the resisting globe...

An interesting story that starts out gritty then turns philosophical. A human captain returns to the planet he fought years to protect, and discovers it devastated, despite winning the war. The humanoid aliens across the galaxy resent Earth's constant neutrality in their wars with hostile alien lifeforms....

As a doctor, Daniel Feldman once made the mistake of saving a friend's life in violation of Medical Lobby rules. Now he's a pariah, shunned by all, and forbidden to touch another patient. But rules are looser on Mars -- there, Doc Feldman is welcomed by the colonists, even as he's hunted by the authorities....

Computer engineer Dave Hansen is transported from Earth to a world where the rules of science and physics are replaced by the rules of magic. Hanson was summoned to help save the world's sky from collapsing. The sky is a literal dome that arches above the world, with the sun and stars not massive...

A man trying to uncover a mystery, and warn everyone. They think he is crazy, he doubts his own sanity, and at the end he discovers a shocking truth about himself. Sometimes what you look is closer than you think.

A human captain returns to the planet he fought years to protect, and discovers it devastated, despite winning the war. The humanoid aliens across the galaxy resent Earth's constant neutrality in their wars with hostile alien lifeforms. The captain shares their bitterness and can't wait to ship out to another war to escape the cowardice of his home planet.

The computer seemed to work as it should. The speed was within acceptable limits. He gave up trying to see the ground and was forced to trust the machinery designed for amateur pilots. The flare bloomed, and he yanked down on the little lever. It could have been worse. They hit the ground, bounced...

Fear cut through the unconscious mind of Wilbur Hawkes. With almost physical violence, it tightened his throat and knifed at his heart. It darted into his numbed brain, screaming at him. He was a soft egg in a vast globe of elastic gelatine. Two creatures swam menacingly through the resisting globe...

As a doctor, Daniel Feldman once made the mistake of saving a friend's life in violation of Medical Lobby rules. Now he's a pariah, shunned by all, and forbidden to touch another patient. But rules are looser on Mars -- there, Doc Feldman is welcomed by the colonists, even as he's hunted by the authorities....

The liner from Port Lyautey was comfortable and slick, but I was leaning forward in my seat as we came in over Naples. I had been on edge all the way across the Atlantic. Now as the steward came through the compartments to pick up our Blue Plate ration coupons for the trip, I couldn't help feeling...

Eighteen men and two women in the closed world of a space ship for five months can only spell tension and trouble—but in this case, the atmosphere was literally poisoned...