Earth's Last Citadel is a science fiction novel written by the American husband and wife team of C. L. Moore and Henry Kuttner. It was first published in 1943 in the magazine Argosy[1] and in book form it was published first in 1964.[2]
During World War II, four people (two belonging to the Allies, two to the Axis) find a strange vehicle in the Tunisian desert. It whisks them to the far future where the Earth has been conquered and mankind is nearly extinct.