J. J. Connington

Set in a period when diabetes remained a dangerous and poorly understood illness, the story unfolds around a suspicious death that appears at first to be natural. Yet subtle inconsistencies begin to trouble the observant investigator, and what seems like a medical tragedy slowly reveals the possibility of deliberate design. As clues emerge from hospital records, scientific knowledge, and human behavior, the case develops into a fascinating puzzle where medicine itself becomes the key to solving the crime. Connington's background in chemistry and science lends authenticity and precision to the investigation, while his careful character work adds emotional depth and tension.
The result is a mystery that is both cerebral and suspenseful, rewarding readers who appreciate fair-play clues and rational deduction. Atmospheric, original, and thought-provoking, Before Insulin stands as one of Connington's most distinctive works-a classic detective story where intellect, science, and mystery intersect in unexpected ways.