V
"I have asked you all to be here because I have some news for you" said Poirot, as though he was telling a dramatic story
"Have you found out who did it?" said Robert Smith.
"No, I have not, but I have found something else, and this is no trivial thing that I know! Mademoiselle O'Dreir," Poirot said, looking at her "I heard that you were employed suddenly by Lord Edgar, with no evidence of experience as being a maid. This was something that made me think, why would Lord Edgar hire someone with no experience? Did he perhaps know here from somewhere? I decided to investigate. I contacted my secretary; Miss Lemon and I found that Mademoiselle O'Dreir is none other that…" he paused for suspense "Lord Edgar's Sister, who is on the run from the police, for the embezzlement of £100,000 from the Bank of London"
"What? Surely you are lying, this cannot be true!" Said Mr. Smith.
"I never speak anything but the truth," said Poirot indignantly "Miss O'Dreir, do you deny this?" He glared at her.
"I never…! No, my game is up," She said, dropping her fake accent "I had kept it hidden for so long, but when you arrived looking for the murderer, I knew I was doomed. I had intended to leave tonight, before you found out, but I am too late. I did not, however, kill my brother. I did not want the Police and the Yard coming here and asking questions. But who, may I ask, told you?"
"Mr. Galverston told us that no one knew much about you, and that when you arrived here at Heatherfield Castle you knew nothing about being a maid. We then spoke to My Drysdale, who knew who you were because he had seen a photograph of you in the newspaper." Inspector Jefferson said, glancing at Poirot, who nodded at him. "We now have you confession down on paper, and request that you come quietly." He escorted her from the room.