“’Twould be about an hour later. Us had to go in again. ‘I’ve made a mistake,’ says old master, ‘had to tear the whole thing up. I’ll trouble you to sign again,’ and us did. And afterwards master give us a tidy sum of money each. ‘I’ve left you nothing in my will,’ says he, ‘but each year I live you’ll have this to be a nest-egg when I’m gone’; and sure enough, so he did.”

Poirot reflected.

“After you had signed the second time, what did Mr. Marsh do? Do you know?”

“Went out to the village to pay tradesmen’s books.”

That did not seem very promising. Poirot tried another tack. He held out the key of the desk.

“Is that your master’s writing?”

I may have imagined it, but I fancied that a moment or two elapsed before Baker replied: “Yes, sir, it is.”

“He’s lying,” I thought. “But why?”

“Has your master let the house?—have there been any strangers in it during the last three years?”

“No, sir.”