The adventures of the Hardy brothers— a real bestseller—won over readers right away. Investigations and mysteries are intertwined, creating an exciting plot. The authors, known for their works about Nancy Drew, created an engaging world that conquered not only the shelves, but also television screens and computer monitors. In the audiobook “The Hardy Boys and the Secret of the House on the Rock,” the boys will have to investigate the disappearance of their father and come face to face with smugglers. All clues point to the house on the rock, where, as it turns out, a ghost lives. But the Hardy brothers aren’t afraid of danger—they go to this mysterious place to uncover its terrible secret.