"Entirely through your kind sympathy, my friend," was the cool reply.
   "My sympathy? What do you mean?"
   "Was it not you, David, who considerately thought of Minna when the post
   came in? And did you not send the man-servant to us, with her letter from
   Fritz?"
   The blubbering voice of Joseph, trembling for his situation, on the
   landing outside, interrupted me before I could speak again.
   "I'm sure I meant no harm, sir. I only said I was in a hurry to get back,
   because you had all gone to the theater, and I was left (with nobody but
   the kitchen girl) to take care of the house. When the lady came, and
   showed me her drawing-book----"
   "That will do, friend Joseph," said the widow, signing to him to go
   downstairs in her easy self-possessed way. "Mr. David is too sensible to
   take notice of trifles. There! there! go down," She turned to me, with an
   expression of playful surprise. "How very serious you look!" she said
   gaily.
   "It might have been serious for _you,_ Madame Fontaine, if Mr. Keller had
   returned to the house to fetch his opera-glass himself."
   "Ah! he has left his opera-glass behind him? Let me help you to look for
   it. I have done my sketch; I am quite at your service." She forestalled
   me in finding the opera-glass. "I really had no other chance of making a
   study of the chimney-piece," she went on, as she handed the glass to me.
   "Impossible to ask Mr. Engelman to let me in again, after what happened
   on the last occasion. And, if I must confess it, there is another motive
   besides my admiration for the chimney-piece. You know how poor we are.
   The man who keeps the picture-shop in the Zeil is willing to employ me.
   He can always sell these memorials of old Frankfort to English travelers.
   Even the few forms he gives me will find two half-starved women in
   housekeeping money for a week."
   It was all very plausible; and perhaps (in my innocent days before I met
   with Frau Meyer) I might have thought it quite likely to be true. In my
   present frame of mind, I only asked the widow if I might see her sketch.
   She shook her head, and sheltered the drawing-book again under her shawl.
   "It is little better than a memorandum at present," she explained. "Wait
   till I have touched it up, and made it saleable--and I will show it to
   you with pleasure. You will not make mischief, Mr. David, by mentioning
   my act of artistic invasion to either of the old gentlemen? It shall not
   be repeated--I give you my word of honor. There is poor Joseph, too. You
   don't want to ruin a well-meaning lad, by getting him turned out of his
   place? Of course not! We part as friends who understand each other, don't
   we? Minna would have sent her love and thanks, if she had known I was to
   meet you. Good-night."
   She ran downstairs, humming a little tune to herself, as blithe as a
   young girl. I heard a momentary whispering with Joseph in the hall. Then
   the house-door closed--and there was an end of Madame Fontaine for that
   time.
   After no very long reflection, I decided that my best course would be to
   severely caution Joseph, and to say nothing to the partners of what had
   happened--for the present, at least. I should certainly do mischief, by
   setting the two old friends at variance again on the subject of the
   widow, if I spoke; to say nothing (as another result) of the likelihood
   of Joseph's dismissal by Mr. Keller. Actuated by these reasonable
   considerations, I am bound frankly to add that I must have felt some
   vague misgivings as well. Otherwise, why did I carefully examine Mr.
   Keller's room (before I returned to the theater), without any distinct
   idea of any conceivable discovery that I might make? Not the vestige of a
   suspicious appearance rewarded my search. The room was in its customary
   state of order, from the razors and brushes on the toilet-table to the
   regular night-drink of barley-water, ready as usual in the jug by the
   bedside.
   I left the bedchamber at last. Why was I still not at my ease? Why was I
   rude enough, when I thought of the widow, to say to myself, "Damn her!"
   Why did I find Gluck's magnificent music grow wearisome from want of
   melody as it went on? Let the learned in such things realize my position,
   and honor me by answering those questions for themselves.
   We were quite gay at supper; the visit to the theater had roused the
   spirits of the two partners, by means of a wholesome break in the
   monotony of their lives. I had seldom seen Mr. Keller so easy and so
   cheerful. Always an abstemious man, he exercised his usual moderation in
   eating and drinking; and he was the first to go to bed. But, while he was
   with us, he was, in the best sense of the word, a delightful companion;
   and he looked forward to the next opera night with the glee of a
   schoolboy looking forward to a holiday.
   CHAPTER XVIII
   The breakfast-room proved to be empty when I entered it the next morning.
   It was the first time in my experience that I had failed to find Mr.
   Keller established at the table. He had hitherto set the example of early
   rising to his partner and to myself. I had barely noticed his absence,
   when Mr. Engelman followed me into the room with a grave and anxious
   face, which proclaimed that something was amiss.
   "Where is Mr. Keller?" I asked.
   "In bed, David."
   "Not ill, I hope?"
   "I don't know what is the matter with him, my dear boy. He says he has
   passed a bad night, and he can't leave his bed and attend to business as
   usual. Is it the close air of the theater, do you think?"
   "Suppose I make him a comfortable English cup of tea?" I suggested.
   "Yes, yes! And take it up yourself. I should like to know what you think
   of him."
   Mr. Keller alarmed me in the first moment when I looked at him. A
   dreadful apathy had possessed itself of this naturally restless and
   energetic man. He lay quite motionless, except an intermittent trembling
   of his hands as they rested on the counterpane. His eyes opened for a
   moment when I spoke to him--then closed again as if the effort of looking
   at anything wearied him. He feebly shook his head when I offered him the
   cup of tea, and said in a fretful whisper, "Let me be!" I looked at his
   night-drink. The jug and glass were both completely empty. "Were you
   thirsty in the night?" In the same fretful whisper he answered,
   "Horribly!" "Are you not thirsty now?" He only repeated the words he had
   first spoken--"Let me be!" There he lay, wanting nothing, caring for
   nothing; his face looking pinched and wan already, and the intermittent
   trembling still at regular intervals shaking his helpless hands.
   We sent at once for the physician who had attended him in trifling
   illnesses at former dates.
   The doctor who is not honest enough to confess it when he is puzzled, is
   a well-known member of the medical profession in all countries. Our
   present physician was one of that sort. He pronounced the patient to be
   suffering from low (or nervous) fever--but it struck Mr. Engelman, as it
   struck me, that he found himself obliged to say something, and said it
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   without feeling sure of the correctness of his own statement. He
   prescribed, and promised to pay us a second visit later in the day.
   Mother Barbara, the housekeeper, was already installed as nurse. Always a
   domestic despot, she made her tyranny felt even in the sick-room. She
   declared that she would leave the house if any other woman presumed to
   enter it as nurse. "When my master is ill," said Mother Barbara, "my
   master is my property." It was plainly impossible that a woman, at her
   advanced age, could keep watch at the bedside by day and night together.
   In the interests of peace we decided on waiting until the next day. If
   Mr. Keller showed no signs of improvement by that time, I undertook to
   inquire at the hospital for a properly qualified nurse.
   Later in the day, our doubts of the doctor were confirmed. He betrayed
   his own perplexity in arriving at a true "diagnosis" of the patient's
   case, by bringing with him, at his second visit, a brother-physician,
   whom he introduced as Doctor Dormann, and with whom he asked leave to
   consult at the bedside.
   The new doctor was the younger, and evidently the firmer person of the
   two.
   His examination of the sick man was patient and careful in the extreme.
   He questioned us minutely about the period at which the illness had
   begun; the state of Mr. Keller's health immediately before it; the first
   symptoms noticed; what he had eaten, and what he had drunk; and so on.
   Next, he desired to see all the inmates of the house who had access to
   the bed-chamber; looking with steady scrutiny at the housekeeper, the
   footman, and the maid, as they followed each other into the room--and
   dismissing them again without remark. Lastly, he astounded his old
   colleague by proposing to administer an emetic. There was no prevailing
   on him to give his reasons. "If I prove to be right, you shall hear my
   reasons. If I prove to be wrong, I have only to say so, and no reasons
   will be required. Clear the room, administer the emetic, and keep the
   door locked till I come back."
   With those parting directions he hurried out of the house.
   "What _can_ he mean?" said Mr. Engelman, leading the way out of the
   bedchamber.
   The elder doctor left in charge heard the words, and answered them,
   addressing himself, not to Mr. Engelman, but to me. He caught me by the
   arm, as I was leaving the room in my turn.
   "Poison!" the doctor whispered in my ear. "Keep it a secret; that's what
   he means."
   I ran to my own bedchamber and bolted myself in. At that one word,
   "Poison," the atrocious suggestion of Frau Meyer, when she had referred
   to Doctor Fontaine's lost medicine-chest, instantly associated itself in
   my memory with Madame Fontaine's suspicious intrusion into Mr. Keller's
   room. Good God! had I not surprised her standing close by the table on
   which the night-drink was set? and had I not heard Doctor Dormann say,
   "That's unlucky," when he was told that the barley-water had been all
   drunk by the patient, and the jug and glass washed as usual? For the
   first few moments, I really think I must have been beside myself, so
   completely was I overpowered by the horror of my own suspicions. I had
   just sense enough to keep out of Mr. Engelman's way until I felt my mind
   restored in some degree to its customary balance.
   Recovering the power of thinking connectedly, I began to feel ashamed of
   the panic which had seized on me.
   What conceivable object had the widow to gain by Mr. Keller's death? Her
   whole interest in her daughter's future centered, on the contrary, in his
   living long enough to be made ashamed of his prejudices, and to give his
   consent to the marriage. To kill him for the purpose of removing Fritz
   from the influence of his father's authority would be so atrocious an act
   in itself, and would so certainly separate Minna and Fritz for ever, in
   the perfectly possible event of a discovery, that I really recoiled from
   the contemplation of this contingency as I might have recoiled from
   deliberately disgracing myself. Doctor Dormann had rashly rushed at a
   false conclusion--that was the one comforting reflection that occurred to
   me. I threw open my door again in a frenzy of impatience to hear the
   decision, whichever way it might turn.
   The experiment had been tried in my absence. Mr. Keller had fallen into a
   broken slumber. Doctor Dormann was just closing the little bag in which
   he had brought his testing apparatus from his own house. Even now there
   was no prevailing on him to state his suspicions plainly.
   "It's curious," he said, "to see how all mortal speculations on events,
   generally resolve themselves into threes. Have we given the emetic too
   late? Are my tests insufficient? Or have I made a complete mistake?" He
   turned to his elder colleague. "My dear doctor, I see you want a positive
   answer. No need to leave the room, Mr. Engelman! You and the young
   English gentleman, your friend, must not be deceived for a single moment
   so far as I am concerned. I see in the patient a mysterious wasting of
   the vital powers, which is not accompanied by the symptoms of any disease
   known to me to which I can point as a cause. In plain words, I tell you,
   I don't understand Mr. Keller's illness."
   It was perhaps through a motive of delicacy that he persisted in making a
   needless mystery of his suspicions. In any case he was evidently a man
   who despised all quackery from the bottom of his heart. The old doctor
   looked at him with a frown of disapproval, as if his frank confession had
   violated the unwritten laws of medical etiquette.
   "If you will allow me to watch the case," he resumed, "under the
   superintendence of my respected colleague, I shall be happy to submit to
   approval any palliative treatment which may occur to me. My respected
   colleague knows that I am always ready to learn."
   His respected colleague made a formal bow, looked at his watch, and
   hastened away to another patient. Doctor Dormann, taking up his hat,
   stopped to look at Mother Barbara, fast asleep in her easy chair by the
   bedside.
   "I must find you a competent nurse to-morrow," he said. "No, not one of
   the hospital women--we want someone with finer feelings and tenderer
   hands than theirs. In the meantime, one of you must sit up with Mr.
   Keller to-night. If I am not wanted before, I will be with you to-morrow
   morning."
   I volunteered to keep watch; promising to call Mr. Engelman if any
   alarming symptoms showed themselves. The old housekeeper, waking after
   her first sleep, characteristically insisted on sending me to bed, and
   taking my place. I was too anxious and uneasy (if I may say it of myself)
   to be as compliant as usual. Mother Barbara, for once, found that she had
   a resolute person to deal with. At a less distressing time, there would
   have been something irresistibly comical in her rage and astonishment,
   when I settled the dispute by locking her out of the room.
   Soon afterwards Joseph came in with a message. If there was no immediate
   necessity for his presence in the bedchamber, Mr. Engelman would go out
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   to get a breath of fresh air, before he retired for the night. There was
   no necessity for his presence; and I sent a message downstairs to that
   effect.
   An hour later Mr. Engelman came in to see his old friend, and to say
   good-night. After an interval of restlessness, the sufferer had become
   composed, and was dozing again under the influence of his medicine.
   Making all allowances for the sorrow and anxiety which Mr. Engelman must
   necessarily feel under the circumstances, I thought his manner strangely
   absent and confused. He looked like a man with some burden on his mind
   which he was afraid to reveal and unable to throw off.
   "Somebody must be found, David, who does understand the case," he said,
   looking at the helpless figure on the bed.
   "Who can we find?" I asked.
   He bade me good-night without answering. It is no exaggeration to say
   that I passed my night at the bedside in a miserable state of indecision
   and suspense. The doctor's experiment had failed to prove absolutely that
   the doctor's doubts were without foundation. In this state of things, was
   it my bounden duty to tell the medical men what I had seen, when I went
   back to the house to look for Mr. Keller's opera-glass? The more I
   thought of it, the more I recoiled from the idea of throwing a frightful
   suspicion on Minna's mother which would overshadow an innocent woman for
   the rest of her life. What proof had I that she had lied to me about the
   sketch and the mantlepiece? And, without proof, how could I, how dare I,
   open my lips? I succeeded in deciding firmly enough for the alternative
   of silence, during the intervals when my attendance on the sick man was
   not required. But, when he wanted his medicine, when his pillows needed a
   little arrangement, when I saw his poor eyes open, and look at me
   vacantly--then my resolution failed me; my indecision returned; the
   horrid necessity of speaking showed itself again, and shook me to the
   soul. Never in the trials of later life have I passed such a night as
   that night at Mr. Keller's bedside.
   When the light of the new day shone in at the window, it was but too
   plainly visible that the symptoms had altered for the worse.
   The apathy was more profound, the wan pinched look of the face had
   increased, the intervals between the attacks of nervous trembling had
   grown shorter and shorter. Come what might of it, when Dr. Dormann paid
   his promised visit, I felt I was now bound to inform him that another
   person besides the servants and ourselves had obtained access secretly to
   Mr. Keller's room.
   I was so completely worn out by agitation and want of sleep--and I showed
   it, I suppose, so plainly--that good Mr. Engelman insisted on my leaving
   him in charge, and retiring to rest. I lay down on my bed, with the door
   of my room ajar, resolved to listen for the doctor's footsteps on the
   stairs, and to speak to him privately after he had seen the patient.
   If I had been twenty years older, I might have succeeded in carrying out
   my intention. But, with the young, sleep is a paramount necessity, and
   nature insists on obedience to its merciful law. I remember feeling
   drowsy; starting up from the bed, and walking about my room, to keep
   myself awake; then lying down again from sheer fatigue; and after
   that--total oblivion! When I woke, and looked at my watch, I found that I
   had been fast asleep for no less than six hours!
   Bewildered and ashamed of myself--afraid to think of what might have
   happened in that long interval--I hurried to Mr. Keller's room, and
   softly knocked at the door.
   A woman's voice answered me, "Come in!"
   I paused with my hand on the door--the voice was familiar to me. I had a
   moment's doubt whether I was mad or dreaming. The voice softly repeated,