In the glittering, high-stakes world of early 20th-century New York, a single man stands between civilization and the masterminds of the criminal underworld: Sanford Quest, the greatest master in criminology the world has ever known.

When the dazzling Ashleigh diamonds are brutally stolen and a young heiress is left dead, Quest is called in to crack a case that baffles the local police. Utilizing unparalleled deductive reasoning and cutting-edge science-from hypnotism to pocket wirelesses and the revolutionary phototelesme-Quest tracks down perpetrators with ruthless efficiency. But his latest triumph is short-lived. A brilliant scientist's prized anthropoid skeleton vanishes into thin air, a high-society matron is robbed by disembodied hands in a darkened conservatory, and a mysterious black box appears in Quest's own home, carrying a taunting message.

As Quest and his daring assistants, Lenora and Laura, delve deeper into the mystery, they uncover a terrifying conspiracy linking stolen jewels, a missing evolutionary link, and an ancient, savage secret hidden deep within a forgotten city estate.

The Black Box is a pulse-pounding, retro-futuristic thriller filled with brilliant deduction, shocking twists, and jaw-dropping scientific gadgets.