Unread condition, with oxidized pages typical to cheap pulp of the era that has not been stored well--likely a back room clean out. Tight, flat, square, sharp book. Stained by dust where exposed during storage. One corner bent over on the back.   Harold W. McCauley cover.

A scarce title.

John Dexter was a pseudonym used by Harry Whittington, Lawrence Block, Marion Zimmer Bradley, John Coleman, Arthur Jean Cox, Richard Curtis, Harvey Hornwood, Al James, William Knoles, Jack Moskovitz, Milo Perichitch, Arthur Plotnik, Robert Silverberg, George Henry Smith, Donald Westlake, Hugh Zachary, among others.  Only a deep dive into the records of Scott Meredith Literary Agency could ferret out which author wrote this one, if such records remain almost 60 years later. 

Silverberg is not credited with this title by Majipoor. Westlake is not credited with this title by donald westlakedot com. It is unlikely Marion Zimmer Bradley wrote this as it is neither gay nor lesbian themed.  Speray does not attribute.