12 - Sheridan Road Mystery by Paul Thorne, Mabel Thorne

In the stillness of a quiet Chicago neighborhood, a gunshot pierces the night. Patrolman Murphy is summoned to an apartment where a man claims the sound originated. The apartment is locked, seemingly deserted. Did a murder occur within these walls? If so, where is the victim? Dive into this gripping mystery. (summary by J. M. Smallheer)