Natalie Sumner Lincoln (1881–1935) was an American novelist who specialized in the genre of mystery writing during the early 20th century. Born in Washington, D.C., Lincoln possessed a keen eye for detail and an innate ability to weave suspenseful narratives, skills which would endear her to a dedicated readership over her career. She is perhaps best known for works such as 'I Spy' (1924), offerin...