Penguin Putnam 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.
Baker & Taylor Frank and Joe are called in to help an international pharmaceutical company catch a gang of drug smugglers
Baker & Taylor Teenage detectives Frank and Joe Hardy investigate a supposedly haunted house reported to be the hangout of criminals.