All Covered Up

  Sound Evidence ~June Thomson Sphere Books (1989) (Original publication date 1984)

  The Long Revenge ~June Thomson Bantam Books (April 1985) (Original publication date 1974)

  The Body That Came by Post ~George Worhting Yates Triangle Books (February 1940) (Original publication date 1937)

If a Body-- ~George Worthing Yates Dell Mapback #159 (1947) (Original publication date 1941)  

  The Four False Weapons ~John Dickson Carr Collier Books (1969) (Original publication date 1937) Reviewed on my blog: My Reader's Block

  Doom in the Midnight Sun ~Eunice Mays Boyd Farrar & Rinehart (1944) (Original publication date 1944)