Tom seeks out Fran Tuett, a local news reporter. Nell speaks to Luke on the boat; learning of what he saw in his visions, she goes diving to find the cave. Martha pressures Runceford to stop potential interference, and Nell is attacked.
Nell escapes the diver's attempt on her life, seen in a vision by Luke. Martha tracks down the last of the Montliskeard descendants, keepers of the stones. Tom's boat is suddenly held under ship arrest over supposed drug trafficking.