Witnesses and agents investigating upper class blackmailer Lord Edgefield can't seem to tell the truth.
Dying agent Penman instructs Miss King to tell Steed that their colleague Melville is a traitor, leading to the avengers boss mother replacing Melville with Steed into the investigation of suspected blackmailer Lord Edgefield. However none of Edgefield's victims are prepared to give evidence and when Steed arrives at the Dreemykreem dairy he discovers the reason.—don @ minifie-1