The poorest ESG in some time, and that despite the fact that it is another Perry Mason. It would seem difficult to believe that any mystery addict was not more or less aware of Mason's techniques, his relations with the DA, with Paul Drake, with Della Street- but Gardner injects explanations that seem extraneous. As for the story itself- this time it is tied up with an adoption racket, blackmail and murder. And Mason's client is an arrogant, cocksure business man who oversells his product -- himself with false claims that Mason speedily punctures. Keeping barely within the bounds of legality, using his usual slick smart tricks, Mason manages to clear his client, to prevent the leakage about the racket, and to spot the killer. But the reader doesn't particularly care.