CONTENTS
I. The Stolen Motor
II. The Murder Car
III. The Mystery of the Thicket
IV. The Liquid Bullet
V. The Blackmailer
VI. The Gambling Den
VII. The Motor Bandit
VIII. The Explanation
IX. The Raid
X. The Gambling Debt
XI. The Gangster's Garage
XII. The Detectaphone
XIII. The Incendiary
XIV. The Escape
XV. The Plot
XVI. The Poisoned Needle
XVII. The Newspaper Fake
XVIII. The Vocaphone
XIX. The Eavesdropper Again
XX. The Speaking Arc
XXI. The Siege of the Bandits
XXII. The Man Hunt
XXIII. The Police Dog
XXIV. The Frame-Up
XXV. The Scientific Gunman
An Adventure in the New Crime Science