The Lady in the Lake is a 1943 detective novel by Raymond Chandler featuring the Los Angeles private investigator Philip Marlowe.
Chandler wrote many of his novels by a process he called cannibalizing his earlier short stories. For The Lady in the Lake Chandler drew on stories featuring his detective John Dalmas: the eponymous "The Lady in the Lake" (published in 1939); "Bay City Blues" (1938); and "No Crime in the Mountains" (1941).