Professor Craig Kennedy is a scientist detective at Columbia University similar to Sherlock Holmes. He uses his knowledge of chemistry and psychoanalysis to solve cases, and uses exotic devices in his work such as lie detectors, gyroscopes, and portable seismographs. Novels: The Dream Doctor The War Terror The Social Gangster The Ear in the Wall Gold of the Gods The Exploits of Elaine The Romance of Elaine The Soul Scar The Film Mystery Short Stories: The Silent Bullet The Scientific Cracksman The Bacteriological Detective The Deadly Tube The Seismograph Adventure The Diamond Maker The Azure Ring "Spontaneous Combustion" The Terror in the Air The Black Hand The Artificial Paradise The Steel Door The Poisoned Pen The Yeggman The Germ of Death The Firebug The Confidence King The Sand-Hog The White Slave The Forger The Unofficial Spy The Smuggler The Invisible Ray The Campaign Grafter The Treasure Train The Truth-detector The Soul-analysis The Mystic Poisoner The Phantom Destroyer The Beauty Mask The Love Meter The Vital Principle The Rubber Dagger The Submarine Mine The Gun-runner The Sunken Treasure