Three great science fiction books for one low price! When a genetic experiment goes wrong, grass threatens to take over the Earth. In Ward Moore's acknowledged masterpiece, as individual people struggle to survive, scientists struggle to stop the disaster only to realize it is easier to wreck an ecology than to fix it. When a starman leaves his returning ship to search for the twin brother who stayed behind, as hugo winner Robert Silverberg tells the story in this, his first published sf novel, ...
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