Ancient Ruins and Archaeology

Ancient Ruins and Archaeology is a 1964 science book by L. Sprague de Camp and Catherine Crook de Camp, one of their most popular works. It was first published in hardcover by Doubleday in 1964, and reprinted under the same title by Barnes & Noble Books in 1992. The first British and paperback edition was issued by Fontana in 1972 under the title Citadels of Mystery, which was the de Camps' original working title; this title was retained by the first American paperback edition, issued by Ballantine Books in April 1973 and reprinted in February 1974. Translations into French, German and Portugu