The Red Box
Rex Stout
 In the midst of a murder investigation, one of the suspects visits Wolfe and begs Wolfe to handle his estate and especially the contents of a certain red box. Wolfe is at first concerned about a possible conflict of interest, but feels unable to refuse when the man dies in his office before telling Wolfe where to find the red box. The police naturally think that he told Wolfe somewhat more before dying.