The House On The Cliff is the second book in the original Hardy Boys series published by Grosset & Dunlap. Frank and Joe Hardy are investigating a mysterious old house high on the cliffs above Barmet Bay when they are frightened off by a scream. The boys return to the apparently haunted house when they make a connection between the place and a smuggling case their father is working on. When their father goes missing, they have to investigate the caves beneath the house and confront the smugglers.
Fenton Hardy, the famous private detective and father of the Hardy Boys, asks his sons to help him with his latest case involving a criminal named Felix Snattman and the illegal drug trade smuggling of stolen drugs. Hardy directs Frank and Joe to a house on the cliff, whose location overlooking Barmet Bay offers an excellent vantage point to watch for smugglers.
The Hardys are tricked into the house by cries for help, and are trapped for a short time in the attic; meanwhile, their telescope and motorcycles are damaged, possibly by the smugglers. They observe a man boating on Barmet Bay being chased by another motorboat. After his boat explodes in flames, Biff and Joe swim out while Frank and Chet get a rowboat to rescue the man. Once brought to shore, the man regains consciousness and says his name is Mr. Jones, which the Hardys believe to be a thinly-disguised alias.
