“Then you will not object to answering a few questions. I put them to you with Mr. Cavendish’s full approval.”

“Oh, certainly, sir.”

“Then I will begin by asking you about the events of yesterday afternoon. Your mistress had a quarrel?”

“Yes, sir. But I don’t know that I ought⁠—” Dorcas hesitated. Poirot looked at her keenly.

“My good Dorcas, it is necessary that I should know every detail of that quarrel as fully as possible. Do not think that you are betraying your mistress’s secrets. Your mistress lies dead, and it is necessary that we should know all⁠—if we are to avenge her. Nothing can bring her back to life, but we do hope, if there has been foul play, to bring the murderer to justice.”