Ace Double book, 1959. Mass market paperback. "The 100th Millennium" was first published as "Earth is But A Star" in Science-Fantasy Magazine, June 1958. It was later rewritten and published as "Catch a Falling Star: (1968). "Edge of Time" was first published in hardcover by Avalon Books in 1958. "David Grinnell" is a pseudonym of the late Donald A. Wollheim.
"synopsis" may belong to another edition of this title.
Seller: Half Price Books Inc., Dallas, TX, U.S.A.
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