London, Thriller Book Club, n.d., circa mid-late 1950s. Someone powerful wants to destroy Department Z and have started a rival organization who have an uncanny knack for anticipating the Department's every move. Is there an internal security leak, or is the truth even more sinister? Corners bumped, spine sunned, ring to front board, as from a cup. Pages bumped with a price of 3/5 written in. $10.00.