Brink of Madness
Author: first_name: Walt
last_name: Sheldon
Language: English
Year: 1953

C.I.B. Agent Pell used his head, even if he did rely on hunches more than on the computer. In fact, when the game got rough, he found that to use his head, he first had to keep it.... - Summary by  If Worlds of Science Fiction, July 1953