آخرین قلعهٔ زمین؛ و، سه چشم شر

Original title, in magazine serial, was "Recruiting Station." Also published by Ace Books as "Earth's Last Fortress." ~ ~~ ~ A recruiting station; a storefront in the heart of a big-city downtown. Young men can volunteer to join the armies of a beleaguered new democracy overseas. ~ ~~ ~ But the recruitment is a scam. Each volunteer goes, not to the Calonian army, but through a pulsing machine which moves them hundreds of centuries up the time line, to become cannon fodder in a war which is shaking the universe. ~ ~~ ~ Two present-day humans are taking on this mammoth military machine. Their chances are miniscule. Their only hope is to save a few lives before giving up their own. But playing tricks with Time can lead to unexpected results. This book consists of two novellas: "The Three Eyes of Evil", which is based on the short story "The Chronicler" (1946), which was also published as the novel "Siege of the Unseen" in 1959; and "Earth's Last Fortress," which is based on the short story "Recruiting Station" (1942), also published as "Masters of Time" (1950).