Seal Passenger is a magazine story.
During work, Oliver spots Farmer McColl's scarecrow - it has been blown over near the line. They put it on board and take it to the next station, where Mavis laughs at the strange passenger. Later on, Oliver collects some fish from a market and a seal which had escaped from the zoo follows the smell on to board the train. Oliver leaves, and on the way Mavis laughs again at the even stranger passenger.