François is at it again in Book 4 of The Seamen Sexology, this time tackling the CEMM Guzzler--a big, important pinnace—and going to Balls Green after the notorious filcher, A. Niall Pilfry. His quest: the King Key Sextant, legendary for its power to make men do unspeakable things. With the help of Randy Butterbottom and his Golden Cockerel, the men must explore this King Key Sextant, and in the process discover much about themselves.