Darker Than You Think

No contemporaneous book-club issue is documented in the sources consulted. The governing reprint tell is the Fantasy Press imprint itself: Quill & Brush records that the publisher's "First Edition" statement was sometimes left standing on offset reprints issued under other publishers' imprints, so a "First Edition" line means nothing unless the spine, title page and jacket all read Fantasy Press, Reading, Pennsylvania, 1948. Later paperback and trade reissues carry their own imprints and are readily distinguished.