Summary: The Priory School. Sunday, July 2, 1978, (No. 5)Credits: Producer, Roger Pine; Director, Peter Novis; Adapter, Michael Bakewell.Cast: Barry Foster (Sherlock Holmes), David Buck (Dr. Watson), William Fox (The Duke of Holdernesse), Alan Dudley (Dr. Huxtable), Peter O'Dwyer (James Wilder), Ralph Lawton (Reuben Hayes).