Angus's shop is broken into. All that is stolen is a bottle of mercuric chloride, and the burglar even left two half-crowns on the counter to pay for the broken window. Drs. Finlay and Cameron have their suspicions about the reason behind the theft, and their prompt action averts a double tragedy. Dr. Finlay organises a surprise party for Dr. Cameron to mark the fortieth anniversary of the opening by the latter of the practice at Arden House. Add a recap »