Helen White Eustis II (December 31, 1916 – January 11, 2015) was an American mystery writer and translator. She was born in Cincinnati. She studied art at Smith College and was awarded the Mystery Writers of America's Edgar Award in 1947 for her novel, The Horizontal Man.
Partial bibliography
Novels
The Horizontal Man (1946)
The Fool Killer (1954)
Short stories
The Captains and the Kings Depart, and Other Stories (1949)