Free They Do It With Mirrors by Agatha Christie

who nearly ran into her.
    He said, “I beg your pardon,” hastily, but Miss Marple was startled by the queer staring expression of his eyes.
    â€œAren’t you feeling well, Mr. Lawson?”
    â€œWell? How should I be feeling well? I’ve had a shock—a terrible shock.”
    â€œWhat kind of a shock?”
    The young man gave a swift glance past her, and then a sharp uneasy glance to either side. His doing so gave Miss Marple a nervous feeling.
    â€œShall I tell you?” He looked at her doubtfully. “I don’t know. I don’t really know. I’ve been so spied upon.”
    Miss Marple made up her mind. She took him firmly by the arm.
    â€œIf we walk down this path … there, now, there are no trees or bushes near. Nobody can overhear.”
    â€œNo—no, you’re right.” He drew a deep breath, bent his head and almost whispered his next words. “I’ve made a discovery. A terrible discovery.”
    â€œWhat kind of a discovery?”
    Edgar Lawson began to shake all over. He was almost weeping.
    â€œTo have trusted someone! To have believed … and it was lies—all lies. Lies to keep me from finding out the truth. I can’t bear it. It’s too wicked. You see, he was the one person I trusted, and now to find out that all the time he’s been at the bottom of it all. It’s he who’s been my enemy! It’s he who has been having me followed about and spied upon. But he can’t get away with it anymore. I shall speak out. I shall tell him I know what he has been doing.”
    â€œWho is ‘he’ ?” demanded Miss Marple.
    Edgar Lawson drew himself up to his full height. He might have looked pathetic and dignified. But actually he only looked ridiculous.
    â€œI’m speaking of my father.”
    â€œViscount Montgomery—or do you mean Winston Churchill?”
    Edgar threw her a glance of scorn.
    â€œThey let me think that—just to keep me from guessing the truth. But I know now. I’ve got a friend—a real friend. A friend who tells me the truth and lets me know just how I’ve been deceived. Well, my father will have to reckon with me. I’ll throw his lies in his face! I’ll challenge him with the truth. We’ll see what he’s got to say to that.”
    And suddenly breaking away, Edgar went off at a run and disappeared in the park.
    Her face grave, Miss Marple went back to the house.
    â€œWe’re all a little mad, dear lady,” Dr. Maverick had said.
    But it seemed to her that in Edgar’s case it went rather further than that.
    2
    Lewis Serrocold arrived back at six thirty. He stopped the car at the gates and walked to the house through the park. Looking out of her window, Miss Marple saw Christian Gulbrandsen go out to meet him and the two men, having greeted one another, turned and paced to and fro, up and down the terrace.
    Miss Marple had been careful to bring her bird glasses with her. At this moment she brought them into action. Was there, or was there not, a flight of siskins by that far clump of trees?
    She noted as the glasses swept down before rising that both men were looking seriously disturbed. Miss Marple leant out a little further. Scraps of conversation floated up to her now and then. If either of the men should look up, it would be quite clear that an enraptured bird-watcher had her attention fixed on a point far removed from their conversation.
    â€œâ€”how to spare Carrie Louise the knowledge—” Gulbrandsen was saying.
    The next time they passed below, Lewis Serrocold was speaking.
    â€œâ€”if it can be kept from her. I agree that it is she who must be considered….”
    Other faint snatches came to the listener.
    â€œâ€”Really serious—” “—not justified—” “too big a responsibility to take—” “we should, perhaps, take outside advice—”
    Finally Miss Marple heard