Cydan is a planet with a race of master imitators. They seek to make the cold war between Earth and Lustra an all out war by imitating and attacking. Their plot is seen through and they are defeated uniting Earth and Lustra instead of bringing them to war.; An 835 year old time capsule is opened releasing three criminals into a nonviolent world. A man finally fights back and the criminals are returned to suspended animation.; Earthman Forbes is captured by the Venusians and stranded on a planet. He imagines an army of his fallen comrades defeating the enemy. He is rescued and finds it to have been true.; The Finites think that man will have evolved into a smaller weaker being. They attack Earth and find mankind larger than they are so they turn tail and fly home.; The future might have cities in space for us.