When a friend inherits a strange collection of curios from South America, Frank and Joe Hardy are drawn into a mystery that turns deadly. An attempt on their lives signals that someone will stop at nothing to get their hands on the artifacts-especially two missing medallions tied to a Central American treasure. From a secret trapdoor in a Greenwich Village shop to a fire in a museum sarcophagus, the trail leads the Hardy Boys deep into a web of danger. With threats mounting, the boys must solve the puzzle of the embers before time runs out.