The 13th Immortal / This Fortress World.
New York: Ace Books, Inc., 1957. First Edition. Paperback. Item #12932
Ace Double Novel Books D-223. Small stain on top edge and on first page not affecting text. A very good+ copy. ; Small octavo.
Price: $25.00
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Science Fiction & Fantasy
See all items by Robert / Gunn Silverberg, James E.