New York: Scribner's, 1973. 8 1/2 x 13 in. Plain wraps, spiralbound, with printed label on front cover. 139 p. (printed on rectos only). Each page with 55 numbered lines with wide margins, suitable for corrections. Galley proofs. Some wear at top & base of spine, minor wear & soiling otherwise. A fragile format. Scarce. 
One of only two bibliomysteries, the other being "Manuscript for Murder," by this prodigiously prolific author.