“I understand,” he smiled pleasantly. “No, I’m very sorry I can’t help you. I heard some cats caterwauling among my trees last night–in fact, I heard them too distinctly, for I had one of my spells of insomnia–but I’ve seen nothing of the cat you mention. I am sorry to hear of its loss. Won’t you come in?”

  Rather curious to know more of my neighbor, I accepted his invitation and he showed me into a study redolent of tobacco and book leather. I glanced curiously at the volumes which lined the walls to the ceiling, but had no opportunity to examine their titles, as my host proved surprisingly talkative. He seemed glad of my call and I knew that his visitors were very rare, if any at all. I found him a highly cultured man, a charming conversationalist, and a most courteous host. He produced whiskey-and-soda from an antique lacquered cabinet whose door seemed to consist of a highly-polished, solid silver plate, and as we sipped our drinks he talked of various subjects in a most interesting manner. Learning from a chance remark that I was deeply interested in the anthropological researches of Professor Hendryk Brooler, he discussed the subject at some length and clarified several points on which I was extremely hazy.

  Fascinated by the man’s evident erudition, it was nearly an hour before I could tear myself away, though I felt exceedingly guilty when I thought of poor Marjory waiting for news of the missing Bozo. I took my departure, promising to return soon, and as I went out the front door, it occurred to me that, after all, I had learned nothing about my host. He had carefully kept the conversation in impersonal channels. I also decided that though he knew nothing about Bozo, the presence of a cat in the house might be an advantage. Several times as we talked, I had heard the scampering of something overhead, though on second thought the noise had not particularly resembled the movements of rodents. It had sounded more like a tiny kid or lamb, or some other small hoofed animal, walking across the floor.

  A thorough search of the neighborhood revealing no trace of the missing Bozo, I reluctantly returned to Marjory, bearing, as a partial consolation, a waddling, bench-legged bulldog with a face like a gargoyle and as loyal a heart as ever beat in a canine breast. Marjory wept over the lost cat and christened her new vassal Bozo in memory of the departed, and I left her romping with him on the lawn as if she had been ten instead of twenty.

  The memory of my conversation with Mr. Stark remained very vivid in my mind and I visited him again next week. Again I was impressed at the deep and varied knowledge which was his. I purposely led the conversation into many different channels, and in each he showed himself master of the subject, going a little deeper into each than I had ever heard anyone go. Science, the arts, economics, philosophy, he was equally versed in all of them. Charmed as I was by his flow of conversation, I nevertheless found myself listening for the curious noise I had heard before, and I was not disappointed. Only this time the tapping sound was louder than before and I decided that his unknown pet was growing. Perhaps, I thought, he kept it in the house fearing it would meet the same fate as the vanished cats, and as I knew the house had no basement or cellar, it was natural that he would keep it in some attic room. A lonely and friendless man, it was probable that he felt a great deal of affection for it, whatever it might be.

  We talked late into the night, and indeed, it was nearing dawn before I forced myself to take my leave.

  As before, he urged me to repeat the visit soon. He apologized for his inability to return my call, as he said his infirmity prevented his doing more than limp about his estate for a little exercise early in the morning before the heat of the day set in.

  I promised to call again soon, but in spite of my desire to do so, business prevented me for some weeks, during which time I became aware of one of those minor neighborhood mysteries which occasionally spring up in some restricted locality, usually to die away unsolved. Dogs, hitherto unmolested by the unknown destroyer of the cats, now began to vanish likewise and their owners were in constant fury.

  Marjory picked me up in her little roadster as I was walking up from town, and I knew something had occurred to upset her. Bozo, her constant companion, grinned dragonishly at me and jovially lapped my face with a long wet tongue.

  “Somebody tried to kidnap Bozo last night, Michael,” she said, her deep dark eyes shadowed with worry and indignation. “I just bet it was the horrid beast who’s been doing away with people’s pets–”

  She gave me the details and it appeared that the mysterious prowler had found Bozo too much of a handful. The family had heard a sudden uproar late in the night, and the sound of a savage struggle, mingled with the maddened roaring of the big dog. They sallied forth and arrived at Bozo’s kennel, just too late to apprehend the visitor whose sounds of flight they distinctly heard. The dog was straining his chain, his eyes blazing, every hair on his body standing on end, and his deep throat thundering his defiance. But of the attacker there was no trace; he had evidently broken away and escaped over the high garden wall.

  I think the incident must have made Bozo suspicious toward strangers, for it was only the next morning that I was called on to rescue Mr. Stark from him.

  As I have said, the Stark house was the last one on his side of the street, and mine was the last on my side. It was, in fact, the last house on the street, lying some three hundred yards from the lower corner of Stark’s wide, tree-covered lawn. On the other corner that faced the street–the corner toward the Ash home–there stood a grove of small trees in one of the vacant lots which separated the Stark estate from the Ash place. As I was passing this grove on my way to the Ash home, I heard a sudden outcry–a man’s voice shouting for help and the infuriated snarling of a dog.

  Plunging through the clump I saw a huge dog leaping repeatedly up at a figure which clung to the lower branches of one of the trees. The dog was Bozo and the man was Mr. Stark, who, in spite of his crippled condition, had managed to scramble up into the tree just out of reach. Horrified and astounded, I sprang to the rescue and hauled Bozo away from his intended victim with some difficulty and sent him sulkily homeward. I sprang to assist Mr. Stark out of the tree, and hardly had he touched the earth when he collapsed completely.

  However, I could find no sign of injury on him, and he breathlessly assured me–between gasps–that he was quite all right except for the shock of fright and exhaustion. He said that he was resting in the shade of the grove, having tired himself by too long a walk about his estate, when the dog suddenly appeared and attacked him. I apologized profusely for Bozo, assured him it would not happen again, and helped him to his study where he reclined on a divan and sipped a whiskey-and-soda which I prepared for him from ingredients found in the lacquered cabinet. He was very reasonable about the matter, assured me that no harm had been done, and attributed the attack to the fact that he was a stranger to the dog.

  Suddenly, as he talked, I again heard the tap-tap of hoofs upstairs, and I was startled; the sound was so much heavier than before, though somewhat muffled. It was such a sound as a yearling might make walking about over a rug-covered floor. My curiosity was so much aroused I could hardly keep from inquiring as to the source of the noise, but naturally refrained from such presumption, and feeling that Mr.

  Stark needed rest and quiet, I left as soon as he was comfortable.

  It was about a week later that the first of the blood-chilling mysteries took place. Again it was an unexplained disappearance, but this time it was no cat or dog. It was a three-year-old tot who was seen playing in a lot near its own yard just before sun-down, and was seen no more by mortal eyes. No need to say that the town was up in alarm. Some people had thought to see a malevolent meaning behind the disappearance of the animals, and now this pointed indisputably to some sinister hand working out of sight.

  The police scoured town and country, but no trace of the missing child was found, and before the fortnight was over, four more had vanished in various parts of the city. Their families received no letters demanding ransom, no sign of any hidden enemy taking this revenge. The silence s
imply yawned and swallowed the victims and remained unbroken. Frantic people appealed to the civil authorities in vain, since they had done all they could and were as helpless as the public.

  There was talk of asking the governor to send soldiers to patrol the city, and men began to go armed and to hasten back to their families long before nightfall. Dark whispers of supernatural agencies began to make the rounds, and folk said forebodingly that no mortal man could so snatch away children and remain unsuspected and unknown. But there was no insurmountable mystery in their abducting. It was impossible to patrol every inch of a large city and to keep an eye always on every child. They played in the lonely parks and stayed out until after dusk at work or play, despite warnings and commands, and ran home through the gathering darkness. It was no supernatural thing for the unknown kidnapper, skulking in the shadows, to reach an arm from among the trees or bushes of park or playground and snatch a child strayed from its playmates. Even on lonely streets and dim back-alleys the thing could be done. The horror lay, not so much in the method of stealing, but in the fact that they were stolen. No sane or normal motive seemed to lie behind it all. An aura of fear hung like a pall over the city, and through this pall shot an icy wave of shuddering horror.

  In one of the more secluded parks near the outskirts of the city, a young couple, indulging in what is popularly known as a “petting party,” were frozen by a terrible scream from a black clump of trees, and not daring to move, saw a stooped and shadowy figure emerge, bearing on its back the unmistakable body of a man. The horror vanished among the trees, and the couple, frenzied with terror, started their auto and raced wildly for the lights of town. They tremblingly gasped out their story to the chief of police and in a short time a cordon of patrolmen had been thrown about the park. But it was too late; the unknown murderer had made good his–or its–escape. In the grove from which the slayer had been seen to emerge was found a disreputable old hat, crumpled and blood-stained, and one of the officers recognized it as one which had been worn by a vagabond picked up by him the day before and subsequently released. The wretch must have been sleeping in the park when doom fell upon him.

  But no other clue was found. The hard springy soil and thick grass gave up no footprint, and the mystery was as much a mystery as ever. And now the fear that hung over the whole city grew almost unbearable in its intensity. I often thought of Mr. Stark, living alone and crippled in that sombre old house, practically isolated, and often feared for him, I made it a point to drop by his place almost every day to assure myself that he was safe. These visits were very brief. Mr. Stark seemed preoccupied, and though he was affable enough, I felt it better not to intrude myself upon him. I did not, indeed, enter his house at all during this period, as I invariably found him hobbling about the lawn or reclining in a hammock between two great oak trees. Either his infirmity was troubling him more than usual, or the horrid mystery which hung over the town had affected him likewise. He seemed tired most of the time, and his eyes were deeply shadowed as if from mental stress or physical weariness.

  A few days after the disappearance of the tramp, the city authorities warned all citizens to be on their guard, as, calculating from past events, it was feared that the unknown killer would strike again soon, possibly that night. The police force had been increased to nearly twice its regular number, and a score of citizens were sworn in as special deputies. Grim-faced men patrolled the streets heavily armed, and as night fell, a suffocating tension settled over the whole city.

  It was shortly after dark when my telephone rang. It was Stark.

  “I wonder if you’d mind coming over,” he said, and his voice sounded rather apologetic. “My cabinet door is jammed and I can’t get it open. I wouldn’t have bothered you, but it’s too late to get a workman here to open it–all the shops are closed. My sleeping powders are in the cabinet, and if I can’t get them, I’ll spend a wretched night; I feel all the symptoms of an attack of insomnia.”

  “I’ll be right over,” I promised.

  A brisk walk took me to his door, where he let me in with much apologies.

  “I’m frightfully sorry to have caused you all this trouble,” he said, “but I haven’t the physical strength to pry the door open, and without my sleeping powders, I’d toss and tumble the whole night through.”

  There was no electric wiring in his house, but several large candles on the table shed sufficient light. I bent before the lacquered cabinet and began to wrestle with the door. I have mentioned the silver plate of which the door appeared to be made. As I worked my gaze fell on this plate which was so highly polished it reflected objects like a mirror. And suddenly my blood chilled. Over my shoulder I saw the reflected countenance of John Stark, unfamiliar and hideously distorted. He held a mallet in his hand which he lifted as he stealthily approached me. I rose suddenly, wheeling to face him. His face was as inscrutable as ever, except for an expression of faint surprise at my abruptness. He extended the mallet.

  “Perhaps you might use this,” he suggested.

  I took it without a word, still keeping my eyes on him, and striking one terrific blow, literally burst the cabinet door open. His eyes widened in surprise, and for a moment we faced each other unspeaking.

  There was an electric tenseness in the air, then above my head I heard again the clumping of hoofs. And a strange chill, like a nameless fright, stole over me–for I could have sworn that it was nothing smaller than a horse which tramped about in the rooms overhead!

  Throwing the mallet aside, I turned without a word and hastened out of the house, nor did I breathe entirely easy until I had gained my own library. There I sat pondering, my mind a chaotic jumble. Had I made a fool of myself? Had not that look of fiendish craft on John Stark’s face as he stole up behind me been merely a distortion of reflection? Had my imagination run away with me? Or–and here dark fears whispered at the back of my brain–had the reflection in that silver plate been all that saved my life? Was John Stark a madman? I shook with a ghastly thought. Was it he who was responsible for the recent detestable crimes? The theory was untenable. What possible reason could a refined, elderly scholar have in abducting children and murdering tramps? Again my fears whispered that there might be a motive–whispered shuddersomely of a ghastly laboratory where a crazed scientist carried out horrible experiments with human specimens.

  Then I laughed at myself. Even supposing John Stark to be a madman, the recent crimes were physically beyond his power. Only a man of almost superhuman strength and agility could carry off strong young children soundlessly and bear the corpse of a murdered man on his shoulders. Certainly no cripple could do it, and it was up to me to go back to Mr. Stark’s house and apologize for my foolish actions–and then a sudden thought struck me like a dash of ice-cold water–something which at the time had impressed itself on my subconscious mind, but which I had not consciously noticed–when I had turned to face John Stark before the lacquered cabinet, he had been standing upright, without his crutch.

  With a bewildered shake of my head, I dismissed the matter from my mind and, picking up a book, settled myself to read. The volume, selected at random, was not one calculated to rid my mind of haunting shadows. It was the extremely rare Dusseldorf edition of Von Junzt’s Nameless Cults, called the Black Book, not because of its iron-clasped leather bindings, but because of its dark contents.

  Opening the volume at random, I began idly to read the chapter on the summoning of daemons out of the Void. More than ever I sensed a deep and sinister wisdom behind the author’s incredible assertions as I read of the unseen worlds of unholy dimensions which Von Junzt maintains press, horrific and dimly guessed, on our universe, and of the blasphemous inhabitants of those Outer Worlds, which he maintains at times burst terribly through the Veil at the bidding of evil sorcerers, to blast the brains and feast on the blood of men.

  Reading, I drowsed, and from my doze awoke with a cold fear lying upon my soul like a cloud. I had dreamed fitfully and in my dream I had heard Marjory c
alling to me faintly, as if from across misty and terrible abysses, and in her voice was a blood-freezing fear as if she were menaced by some horror beyond all human understanding. I found myself shaking as with ague and cold sweat stood upon my body as in a nightmare.

  Taking up the telephone, I called up the Ash home. Mrs. Ash answered and I asked to speak to Marjory.

  Her voice came back over the wire tinged with anxiety, “Why, Michael, Marjory has been gone for more than an hour! I heard her talking over the phone, and then she told me you wanted her to meet you by the grove on the corner of the Stark place, to take a ride. I thought it was funny that you didn’t drive by the house as you always do, and I didn’t like the idea of her going out alone, but I supposed you knew best–you know we always put so much faith in you, Michael–so I let her go. You don’t think–anything–anything–”

  “Oh no!” I laughed, but my laughter was hollow, my throat dry. “Nothing’s happened, Mrs. Ash. I’ll bring her home, right away.”

  As I hung up the receiver and turned away, I heard a sound outside the door–a scratching sound accompanied by a low whimper. Such a small thing can be vested with unknown fear at times–my hair prickled and my tongue clove to my palate. Expecting to see I knew not what, I flung open the door. A cry broke from my lips as a dusty, blood-stained shape limped in and staggered against my legs. It was Marjory’s dog, Bozo. He had evidently been brutally beaten. One ear was split open and his hide had been bruised and torn in half a dozen places.

  He seized my trouser leg and pulled me toward the door, growling deep in his throat. My mind a seething hell, I prepared to follow him. The thought of a weapon entered my mind, and at the same instant I remembered I had loaned my revolver to a friend who feared to traverse the streets at night unarmed.

  My gaze fell upon a great broadsword hanging on the wall. The weapon had been in the family for eight centuries and had let blood on many a battlefield since it first hung at the girdle of a Crusading ancestor.