The House on the Cliff

In the second installment of The Hardy Boys series, Frank and Joe Hardy find themselves embroiled in a perilous mystery centered around a haunted mansion believed to be connected to smugglers. As their father, detective Fenton Hardy, goes missing during his investigation, the brothers must rely on their detective skills and bravery to follow a trail of hidden clues through dark caves and secret passages. With danger lurking at every turn, they race against time to uncover the truth and locate their father.