“Yes, the house next to the one you entered on that fatal night was in the occupation of Madame,” she explained. “We seldom went there, however, although I personally preferred the bright life in Kensington to that at Hampton. From the many private conversations, meaning looks and mysterious whisperings exchanged between Madame and Mrs Blain there was soon aroused within me a vague suspicion that something secret was in progress. I liked old Mr Blain exceedingly, and Mary became my best friend; nevertheless, my misgivings were strengthened, when one day Hartmann, unusually shabbily dressed and accompanied by the Blains, arrived at The Hollies and the trio were closeted for quite an hour with Madame. At length there also arrived a youngish good-looking man with a lady of about his own age, and they were at once admitted to the drawing-room, being enthusiastically welcomed. After half an hour or so we all dined together, but in the drawing-room before dinner I noticed two tumblers half-filled with dirty water, in one a tiny glass rod evidently used for mixing, as though Hartmann had been exhibiting some of his secret experiments. On entering the dining-room, Madame introduced her new guests to me as Mr and Mrs Coulter-Kerr, and sitting beside the husband I found him a most interesting and intelligent man, who literally adored his wife. In the course of conversation it transpired that the newly-arrived pair were from India, and had taken the Blains’ town house for the season, and further, that Hartmann, who had apparently become one of their most intimate friends, had established his laboratory in one of the top rooms of that house.”
She paused and glanced across to the detective, who was listening attentively with folded arms. As she related her story her great clear eyes became more luminous.
“A week later,” she continued, “we went to London and there saw a good deal of our next-door neighbours. Madame was on terms of the closest intimacy with them, and frequently we would dine there, or they would dine with us, while one evening Hartmann—who did not live there, but only came to continue his scientific studies, assisted by Mr Kerr, who took the keenest interest in them—invited us up into his laboratory, and after showing us Mr Kerr’s collection of pet Indian snakes, which I confess I did not appreciate, he exhibited to us an experiment which he told us had never been successfully accomplished by any other man except himself, namely, the liquefaction of hydrogen. To succeed in this, he told us, all his efforts had been directed for years, and now that he had successfully solved the problem he would one day launch it upon the scientific world as a bolt from the blue. Our friends gave excellent dinners, were evidently possessed of almost unlimited means, and were never so happy as when the Blains and ourselves were at their table or playing cards with them. Soon, however, another matter caused me deep reflection. One evening at The Hollies, after the Blains and Hartmann had been closely closeted with Madame, discussing, as they so often did, their private affairs, I found lying beneath a book upon the table, and apparently overlooked, several plain cards, and others with devices, lines and circles roughly-drawn in ink. Then two or three days later, when I chanced to call in at the Kerrs, I noticed, stuck behind a mirror over the mantelshelf, some cards exactly similar. I was alone, therefore my curiosity prompted me to examine them. Upon them I found exactly similar devices!”
“Ah! what connexion had those cards with the affair?” interrupted Dick.
“A very curious one,” she responded, pale, yet now firm in her determination to tell us everything. “Their discovery caused me a good deal of thought, especially as the secret consultations with Mr Blain became more frequent when, after a fortnight or so in London, we returned to The Hollies. One day, however, a further incident happened, which was, to say the least, extraordinary. While alone in Madame’s bedroom the cook entered, asking for some coppers to pay for some small article which had been brought. She wanted sevenpence. I had only sixpence in my purse, but remembering that in the little cabinet where Madame kept her jewels I had seen a penny on the previous day I unlocked it and took it out. Strangely enough, this penny was wrapped up in paper. I took it in my hand and turned it over to assure myself that it was not any rare foreign coin, and was about to hand it to the cook when Madame herself came in. ‘What’s that you have?’ she cried, in an instant pale-faced in alarm. I told her that I had taken the penny from the cabinet, whereupon she betrayed the greatest apprehension, and snatched up a piece of paper in which she carefully re-wrapped it. Then, telling me on no account to again touch it or open it, she gave the cook a penny from her pocket and dismissed her. Almost next instant I felt an indescribable numbness in the hand that had held the forbidden coin. The fingers seemed paralysed, and I had a faint idea that I had felt a strange roughness about the face of the copper, as though it had been chipped. I complained to Madame of the curious feeling, whereupon she flew to her small travelling medicine-chest, which she always kept locked, and took therefrom a phial, from which she poured a few drops of a dark green liquid into a glass of water. ‘There,’ she said, betraying quite undue alarm, I thought, ‘drink that. You’ll be better very quickly.’ I gulped it down. It tasted very bitter, but within a quarter of an hour I felt no further pain. My hand had in a few seconds commenced to swell, but the medicine at once arrested it. Until long afterwards it never occurred to me that upon that penny was one of those insidious but most deadly of poisons known to toxicologists, which, entering by an abrasion of the skin, would have quickly proved fatal had not my employer at once administered an antidote. Later, I succeeded in obtaining possession of that coin, and found upon it a series of almost infinitesimal steel points, a puncture or scratch from any one of which must result in death.”
I recollected how we had discovered that coin in her escritoire. We might congratulate ourselves that neither of us had held it in our hands without its wrappings.
“For a long time I was greatly puzzled by these and other circumstances. Certain scraps of conversation which I overheard between Madame and Blain, and between my employer and Hartmann, increased my suspicions, and especially so when I found Madame carrying on a series of secret experiments in her own rooms, often boiling certain decoctions over the tiny spirit-lamp used to heat her curling-irons. Several of the liquids thus manufactured she placed in the tiny phials of her medicine-chest. All this time, while passing everywhere as my mother, Lady Glaslyn, she was extremely kind to me, until I even began to believe that my suspicions were unfounded. Only now do I know how subtle was her cunning, how ingenious and how daring she was. One day, in April, I, however, had my suspicions still more deeply strengthened by a strange request she made to me, namely, that if at any time I should chance to witness any uncommon scene in her house, that I would breathe no word to a single soul. This struck me as peculiar, and I demanded the reason, whereupon she smiled, giving me bluntly to understand that my own safety lay alone in my secrecy, and pointing out that by obtaining quantities of goods and jewellery on credit, as I had done at her request from firms in Regent Street and Oxford Street, in the name of Lady Glaslyn, I had placed myself in grave peril of being arrested for fraud. I saw instantly that this woman who had posed as my friend had most cleverly spread about me a web from which there was now no possible escape. She evidently desired my assistance in whatever nefarious purpose she had in view.”
“What a position!” I exclaimed. “Then the woman had compelled you to obtain the goods by fraud in order to secure a certain hold over you?”
“Of course,” she answered in a low, firm tone. “But that’s not half the craft and cunning she displayed, as you will perceive later. I know I have acted wrongly, and should have long ago placed my suspicions before the police, but I feared to do so, lest I should be arrested for the fraud. From day to day I lived on in anxiety and breathless wonder, Mrs Blain or Blain himself being constant visitors to The Hollies, while now and then Hartmann would come down from London, as if called in for consultation. At length, one day in early June, we returned to the house in Upper Phillimore Place, Madame announcing her intention to remain there a month. Our neighbours, the Coulter-Kerrs, were delighted at our return, for they seemed to know hardly a soul in London. After we had been there about a week Mrs Blain and Mary called one afternoon, and while I chatted to the latter in the dining-room, Mrs Blain talked privately with Madame in the room beyond. The door was closed, as usual, and they were conversing only in low whispers, when suddenly their voices became raised in heated discussion. A quarrel had arisen, for I heard Mrs Blain exclaim quite distinctly: ‘I tell you I have never dreamed of any such thing; and I’ll never be a party to it. Such a suggestion is horrifying!’ Then Madame spoke some low words, to which her companion responded: ‘I tell you I will not! From this moment I retire from it. Such a thing is infamous! I never thought that it was intended to act in such a manner.’ To this Madame made some muttered observation regarding ‘absurd scruples’ and the impossibility of detection, whereupon Mrs Blain flounced forth from the room in a high state of indignation, saying, ‘Mary, it’s time we should go, dear, or we shan’t be home for dinner.’ Then she made a cold adieu to the woman who had been her most intimate friend, and with her daughter departed.” Eva’s breath came and went rapidly in the intensity of her emotions, her thin nostrils slightly dilated, and as she paused her lips were firmly pressed together.
“Next morning, at about eleven, almost before Madame was ready to receive, Blain himself called,” she went on. “He was grey-faced and very grave, but after a rather long interview he left in high spirits, wishing me farewell quite gaily. On the following day the Coulter-Kerrs were in great distress about their servants, for both were dishonest, and upon Madame’s declaration that she could immediately find others they had been discharged at a moment’s notice. About five o’clock that afternoon both husband and wife, with whom I was on the most friendly terms, came in to chat with Madame about the servants, and after we had conversed some time tea was brought, of which we all partook. Then Madame invited them in for whist after dinner, as was our habit, for we were all inveterate players. About six o’clock, while I accompanied Mr Kerr next door in order to prepare their makeshift meal, Mrs Kerr—Madame always called her Anna—remained behind to make some arrangements for one of our servants to go in temporarily. Suddenly, about twenty minutes later, while I was in the kitchen washing some salad, I became conscious of a strange, sharp pain which struck me across the eyes, followed almost instantly by a kind of paralysis of the limbs and a feeling of giddiness. I ascended to the hall, calling loudly for help, and from the drawing-room heard Mr Kerr’s voice, hoarse and strange-toned, in response. With difficulty I struggled up the second flight of stairs, but on entering the room where the tiny red light burned—some curious Indian superstition of Mrs Kerr’s—I saw in the dusk that Kerr had fallen prone on the floor and was motionless as one dead. Then, helpless, I tottered across to a chair, and sinking into it all consciousness left me.”