The Unknown Seven

A private detective on the trail of a missing man is lured into a limousine by a mysterious woman who claims his case is only a loose thread in a far larger enigma. Blindfolded and taken to a hidden lair of luxury, he is offered a place in a shadowy organization—seven strangers united by a dangerous secret.

Caught between a suave physician with Machiavellian cunning and a ruthless conspiracy that will stop at nothing to protect its interests, the detective must outwit enemies on every side. As bodies accumulate and alliances shift, each move in this deadly chess match brings him closer to a truth that powerful forces would kill to keep buried.

Set against the fog-shrouded streets and gilded interiors of Jazz Age New York, this classic tale of deduction, disguise, and nerve is a gripping battle of wits from start to finish.