In the intriguing world of 'The Bradys and the Opium Dens; or Trapping the Crooks of Chinatown' by Francis Worcester Doughty, mystery and danger lurk in the shadows of New York City. Old King Brady, a renowned detective, is faced with the puzzling case of Jonathan Small, a prominent figure in the town of Bushville who has mysteriously vanished. As Old King Brady delves into the seedy underbelly of the city, he uncovers a web of deception and criminal activity in Chinatown's opium dens. With the help of his talented partner, Young King Brady, they must navigate treacherous paths and outwit cunning crooks to bring justice to those who prey on the innocent.