The House on the Cliff - Franklin W. Dixon

Frank and Joe Hardy are investigating a mysterious old house high on the cliffs above Barmet Bay when they are frightened off by a mysterious scream.\n The boys return to the apparently haunted house and make a connection between the place and a smuggling case their father is working on.\n When their father goes missing,\n they start-out investigating the secret caves beneath the house and soon confront the gang of smugglers.\n