Mallory is crushed when her favorite aunt dies suddenly, but her feelings of sadness turn to anger when family and friends at the funeral seem to be taking Aunt Trudy's death too lightly.
The Hardy Boys discover a box at the beach that contains a priceless jade statue. This plunges them into a case involving smugglers and an extortion plot against a community of Chinese-Americans.
The sisters get new habits, and Sister Bertrille is unable to fly.