Detective Story Magazine

# Detective Story Magazine, August 27, 1921

This issue of Detective Story Magazine contains one complete novel, "Z" by Edwin Baird, two serials, and six short stories. The featured serial The Unknown Seven by Harry Coverdale begins in this installment. The narrative opens with protagonist Kingdon Cole observing a window in a building on Bleecker Street where Professor Carmody apparently works late. Interrupted by a mysterious woman in a luxurious limousine, Cole accepts an invitation to enter her vehicle. The woman demonstrates extensive knowledge of Cole—his published criminology works, his apartment, and his role in the Wilmerding murder case—while remaining herself mysterious. She mentions Malcolm Reeves's three-week disappearance after supposedly visiting Professor Carmody, establishing the central mystery. The issue includes detective department features and a fingerprint identification advertisement.