‘It wasn’t exactly mysterious, it was just unsatisfactory. There must be many lonely women, proud and reti-cent, in just that position. There were a couple of photographs amongst her belongings in Las Palmas—rather old and faded and they had been cut to fit the frames they were in, so that there was no photographer’s name upon them, and there was an old daguerreotype which might have been her mother or more probably her grandmother.

‘Miss Barton had had two references with her. One she had forgotten, the other name she recollected after an effort. It proved to be that of a lady who was now abroad, having gone to Australia. She was written to. Her answer, of course, was a long time in coming, and I may say that when it did arrive there was no particular help to be gained from it. She said Miss Durrant had been with her as companion and had been most efficient and that she was a very charming woman, but that she knew nothing of her private affairs or relations.

‘So there it was—as I say, nothing unusual, really. It was just the two things together that aroused my uneasiness. This Amy Durrant of whom no one knew anything, and the Spanish woman’s queer story. Yes, and I’ll add a third thing: When I was first bending over the body and Miss Barton was walking away towards the huts, she looked back. Looked back with an expression on her face that I can only describe as one of poignant anxiety—a kind of anguished uncertainty that imprinted itself on my brain.

‘It didn’t strike me as anything unusual at the time. I put it down to her terrible distress over her friend. But, you see, later I realized that they weren’t on those terms. There was no devoted attachment between them, no terrible grief. Miss Barton was fond of Amy Durrant and shocked by her death—that was all.

‘But, then, why that terrible poignant anxiety? That was the question that kept coming back to me. I had not been mistaken in that look. And almost against my will, an answer began to shape itself in my mind. Supposing the Spanish woman’s story were true; supposing that Mary Barton wilfully and in cold blood tried to drown Amy Durrant. She succeeds in holding her under water whilst pretending to be saving her. She is rescued by a boat. They are on a lonely beach far from anywhere. And then I appear—the last thing she expects. A doctor! And an English doctor! She knows well enough that people who have been under water far longer than Amy Durrant have been revived by artificial respiration. But she has to play her part—to go off leaving me alone with her victim. And as she turns for one last look, a terrible poignant anxiety shows in her face. Will Amy Durrant come back to life and tell what she knows?’

‘Oh!’ said Jane Helier. ‘I’m thrilled now.’

‘Viewed in that aspect the whole business seemed more sinister, and the personality of Amy Durrant became more mysterious. Who was Amy Durrant? Why should she, an insignificant paid companion, be murdered by her employer? What story lay behind that fatal bathing expedition? She had entered Mary Barton’s employment only a few months before. Mary Barton had brought her abroad, and the very day after they landed the tragedy had occurred. And they were both nice, commonplace, refined Englishwomen! The whole thing was fantastic, and I told myself so. I had been letting my imagination run away with me.’