"Two men! Foreigners, of course." "Our man is no foreigner," I said.

"Did they give themselves a name ?" "The landlord asked the one who stayed behind for his name," replied Lucilla.

"He said it was 'Dubourg.'" This confirmed me in my belief that I had guessed right.

"Dubourg" is as common a name in my country as "Jones" or "Thompson" is in England--just the sort of feigned name that a man in difficulties would give among _us._ Was he a criminal countryman of mine?
No! There had been nothing foreign in his accent when he spoke.

Pure English--there could be no doubt of that.