"Alarms and Excursions" 8 March 1980 There is an outbreak of unexplained dog poisonings in the Darrowby area. Siegfried decides to investigate. Tristan has a farewell evening out with the local bell ringers. James and Tristan go to the bell tower. As can be expected, things do not go smoothly. Siegfried treats Joan Clifford's dog, Saxon, but the case has specific implications for her. James, meanwhile, treats the inexplicably-loud Len Hamson's pigs. Characters: Mrs Hall, Joan Clifford, Rob Benson, Len Hamson, Elijah Hamson, Nathaniel Adamson, Bert Bartle, George. Helen Herriot does not appear