The House on the Cliff (Hardy Boys) [Hardcover] Dixon, Franklin W.

Stated 1959 edition but does have ISBNs listed inside indicating later printing. Mint-tight as if unread BUT has smudge on side page edges, a little wear to corners/small stry mark front cover, lightened but not by sun--maybe in publishing?, front seems lightened some, some small scuffs back bottom (pictorial hardcover boards).