Miss Tayke visits the British Museum to listen to a lecture by an eminent professor friend who is ridiculed by fellow scientists when he claims to have seen the monster several times at the bottom of Loch Ness. With her trusted sidekicks she travels to the Highlands to learn more about his sightings but finds him dead in his remote hillside cottage; poisoned and with a fractured skull. Her enquiries reveal four prime suspects; a young female journalist anxious to interview the professor on his work, a seedy tabloid newspaperman hell bent on exposing him as a charlatan, and two television executives planning a reality programme. One of them murdered the professor but which one? In a chase around the Loch Ness and with her customary doggedness Miss Tayke unmasks the killer.
