THE SULLIVAN DETECTIVE AGENCY: DOUBLE TROUBLE THE FINAL CLUE (PART-III)

In one of the best mystery and thriller books, back in Bloomfield, the detectives investigate a decades-old disappearance at an abandoned amusement park. As ghostly games, hidden rooms, and frightening clues surface, the agency races to uncover the truth behind a missing boy and a vanishing sarcophagus, blending real danger with supernatural suspense in the category of adventure thriller books.