The Case of the Running Man by Christopher Bush, 1958

 

cover image only - no review

This is Ludovic Travers #51

Three Witnesses by Rex Stout, 1954

 

Cover image only - no review

Gold Comes in Bricks by A.A. Fair, 1940

 

Cover image only - no review

This is Donald Lam & Bertha Cool #3 

The Red House Mystery by A.A. Milne, 1922

 

cover image only - no review