C. M. Eddy, Jr.

Clifford Martin Eddy, Jr. (1896–1967) was an American author best known for his horror and sci-fi short stories.

He was a friend and confidant to both H. P. Lovecraft and Harry Houdini. He was a member of Lovecraft's inner circle of friends and authors, and he and Lovecraft edited each others works. Both authors were also investigators for Houdini, and served the magician as ghostwriters.