London: Gollancz, 1951. First Edition. First impression. 12mo (19cm). Red cloth hardcover; printed yellow dustwrapper, 224pp. A quite clean copy in the original red cloth, Very Good to Near Fine. In the original publisher's dustwrapper, unclipped (priced 9/6 net at base of front flap), slightly darkened on spine and with some overall dusting and edgewear; Very Good. A Gervase Fen mystery.