The Woman in Black, by Zenith Brown (writing as Leslie Ford) (epub/Kindle/pdf)
WHO IS THE WOMAN IN BLACK?
A living ghost, dressed in black, crashes a Washington cocktail party -- and touches off a chain of violence and murder.
Who is the Woman in Black? The answer is a matter of life and death for a pretty young matron, a legendary captain of industry, a rich and dazzling hostess -- and for lady sleuth Grace Latham and her friend Col. Primrose.
"Mrs Latham works wonders with the clues. A major Ford opus." -- New York Herald Tribune