A narrow path beneath the over-arching boughs of cherry-laurel and arbutus, immediately facing the lodge, caught her eye, and down this she at once turned her footsteps.
  This path led, with many a wind and turn, through a belt of shrubbery that skirted the frontage of Mr Craven's grounds, and eventually, after much zig-zagging, ended in close proximity to the stables. As Loveday entered it, she seemed literally to leave daylight behind her.
  'I feel as if I were following the course of a circuitous mind,' she said to herself as the shadows closed around her. 'I could not fancy Sir Isaac Newton or Bacon planning or delighting in such a windabout-alley as this!'
  The path showed greyly in front of her out of the dimness. On and on she followed it; here and there the roots of the old laurels, struggling out of the ground, threatened to trip her up. Her eyes, however, had now grown accustomed to the half-gloom, and not a detail of her surroundings escaped her as she went along.
  A bird flew out the thicket on her right hand with a startled cry. A dainty little frog leaped out of her way into the shrivelled leaves lying below the laurels. Following the movements of this frog, her eye was caught by something black and solid among those leaves. What was it? A bundle â a shiny black coat? Loveday knelt down, and using her hands to assist her eyes, found that they came into contact with the dead, stiffened body of a beautiful black retriever. She parted, as well as she was able, the lower boughs of the evergreens, and minutely examined the poor animal. Its eyes were still open, though glazed and bleared, and its death had, undoubtedly, been caused by the blow of some blunt, heavy instrument, for on one side its skull was almost battered in.
  'Exactly the death that was dealt to Sandy,' she thought, as she groped hither and thither beneath the trees in hopes of lighting upon the weapon of destruction.
  She searched until increasing darkness warned her that search was useless. Then, still following the zig-zagging path, she made her way out by the stables and thence back to the house.
  She went to bed that night without having spoken to a soul beyond the cook and butler. The next morning, however, Mr Craven introduced himself to her across the breakfast table. He was a man of really handsome personal appearance, with a fine carriage of the head and shoulders, and eyes that had a forlorn, appealing look in them. He entered the room with an air of great energy, apologized to Loveday for the absence of his wife, and for his own remissness in not being in the way to receive her on the previous day. Then he bade her make herself at home at the breakfast-table, and expressed his delight in having found a coadjutor in his work.
  'I hope you understand what a great â a stupendous work it is?' he added, as he sank into a chair. 'It is a work that will leave its impress upon thought in all the ages to come. Only a man who has studied comparative philology as I have for the past thirty years, could gauge the magnitude of the task I have set myself.'
  With the last remark, his energy seemed spent, and he sank back in his chair, covering his eyes with his hand in precisely the same attitude as that in which Loveday had seen him over-night, and utterly oblivious of the fact that breakfast was before him and a strangerguest seated at table. The butler entered with another dish. 'Better go on with your breakfast,' he whispered to Loveday, 'he may sit like that for another hour.'
  He placed his dish in front of his master.
  'Captain hasn't come back yet, sir,' he said, making an effort to arouse him from his reverie.
  'Eh, what?' said Mr Craven, for a moment lifting his hand from his eyes.
  'Captain, sir â the black retriever,' repeated the man.
  The pathetic look in Mr Craven's eyes deepened.
  'Ah, poor Captain!' he murmured; 'the best dog I ever had.'
  Then he again sank back in his chair, putting his hand to his forehead.
  The butler made one more effort to arouse him.
  'Madam sent you down a newspaper, sir, that she thought you might like to see,' he shouted almost into his master's ear, and at the same time laid the morning's paper on the table beside his plate.
  'Confound you! Leave it there,' said Mr Craven irritably. 'Fools! Dolts that you all are! With your trivialities and interruptions you are sending me out of the world with my work undone!'
  And again he sank back in his chair, closed his eyes and became lost to his surroundings.
  Loveday went on with her breakfast. She changed her place at table to one on Mr Craven's right hand, so that the newspaper sent down for his perusal lay between his plate and hers. It was folded into an oblong shape, as if it were wished to direct attention to a certain portion of a certain column.
  A clock in a corner of the room struck the hour with a loud, resonant stroke. Mr Craven gave a start and rubbed his eyes.
  'Eh, what's this?' he said. 'What meal are we at?' He looked around with a bewildered air. 'Eh! â who are you?' he went on, staring hard at Loveday. 'What are you doing here? Where's Nina? Where's Harry?'
  Loveday began to explain, and gradually recollection seemed to come back to him.
  'Ah, yes, yes,' he said. 'I remember; you've come to assist me with my great work. You promised, you know, to help me out of the hole I've got into. Very enthusiastic, I remember they said you were, on certain abstruse points in comparative philology. Now, Miss â Miss â I've forgotten your name â tell me a little of what you know about the elemental sounds of speech that are common to all languages. Now, to how many would you reduce those elemental sounds â to six, eight, nine? No, we won't discuss the matter here, the cups and saucers distract me. Come into my den at the other end of the house; we'll have perfect quiet there.'
  And utterly ignoring the fact that he had not as yet broken his fast, he rose from the table, seized Loveday by the wrist, and led her out of the room and down the long corridor that led through the south wing to his study.
  But seated in that study his energy once more speedily exhausted itself.
  He placed Loveday in a comfortable chair at his writing-table, consulted her taste as to pens, and spread a sheet of foolscap before her. Then he settled himself in his easy-chair, with his back to the light, as if he were about to dictate folios to her.
  In a loud, distinct voice he repeated the title of his learned work, then its subdivision, then the number and heading of the chapter that was at present engaging his attention. Then he put his hand to his head. 'It's the elemental sounds that are my stumbling-block,' he said. 'Now, how on earth is it possible to get a notion of a sound of agony that is not in part a sound of terror? Or a sound of surprise that is not in part a sound of either joy or sorrow?'
  With this his energies were spent, and although Loveday remained seated in that study from early morning till daylight began to fade, she had not ten sentences to show for her day's work as amanuensis.
  Loveday in all spent only two clear days at Troyte's Hill.
  On the evening of the first of those days Detective Griffiths received, through the trustworthy post-boy, the following brief note from her:
I have found out that Hales owed Sandy close upon a hundred pounds, which he had borrowed at various times. I don't know whether you will think this fact of any importance.
L.B.
Mr Griffiths repeated the last sentence blankly. 'If Harry Craven were put upon his defence, his counsel, I take it, would consider the fact of first importance,' he muttered. And for the remainder of that day Mr Griffiths went about his work in a perturbed state of mind, doubtful whether to hold or to let go his theory concerning Harry Craven's guilt.
  The next morning there came another brief note from Loveday which ran thus:
As a matter of collateral interest, find out if a person, calling himself Harold
Cousins, sailed two days ago from London Docks for Natal in the
Bonnie Dundee
?'
To this missive, Loveday received, in reply, the following somewhat lengthy despatch:
I do not quite see the drift of your last note, but have wired to our agents in
London to carry out its suggestion. On my part, I have important news to
communicate. I have found out what Harry Craven's business out of doors
was on the night of the murder, and at my instance a warrant has been issued
for his arrest. This warrant it will be my duty to serve on him in the course of
today. Things are beginning to look very black against him, and I am convinced
his illness is all a sham. I have seen Waters, the man who is supposed to be
attending him, and have driven him into a corner and made him admit that
he has only seen young Craven once â on the first day of his illness â and that
he gave his certificate entirely on the strength of what Mrs Craven told him of
her son's condition. On the occasion of this, his first and only visit, the lady,
it seems, also told him that it would not be necessary for him to continue his
attendance, as she quite felt herself competent to treat the case, having had so
much experience in fever cases among the blacks at Natal.
 Â
As I left Waters' house, after eliciting this important information, I was accosted
by a man who keeps a low-class inn in the place, McQueen by name. He said that
he wished to speak to me on a matter of importance. To make a long story short,
this McQueen stated that on the night of the sixth, shortly after eleven o'clock,
Harry Craven came to his house, bringing with him a valuable piece of plate
â a handsome epergne â and requested him to lend him a hundred pounds on
it, as he hadn't a penny in his pocket. McQueen complied with his request to
the extent of ten sovereigns, and now, in a fit of nervous terror, comes to me
to confess himself a receiver of stolen goods and play the honest man! He says
he noticed that the young gentleman was very much agitated as he made the
request, and he also begged him to mention his visit to no one. Now, I am
curious to learn how Master Harry will get over the fact that he passed the lodge
at the hour at which the murder was most probably committed; or how he will
get out of the dilemma of having repassed the lodge on his way back to the house,
and not noticed the wide-open window with the full moon shining down on
it? Another word! Keep out of the way when I arrive at the house, somewhere
between two and three in the afternoon, to serve the warrant. I do not wish your
professional capacity to get wind, for you will most likely yet be of some use to
us in the house.
S.G.
Loveday read this note, seated at Mr Craven's writing-table, with the old gentleman himself reclining motionless beside her in his easychair. A little smile played about the corners of her mouth as she read over again the words â 'for you will most likely yet be of some use to us in the house'.
  Loveday's second day in Mr Craven's study promised to be as unfruitful as the first. For fully an hour after she had received Griffiths' note, she sat at the writing-table with her pen in her hand, ready to transcribe Mr Craven's inspirations. Beyond, however, the phrase, muttered with closed eyes â 'It's all here, in my brain, but I can't put it into words' â not a half-syllable escaped his lips.
  At the end of that hour the sound of footsteps on the outside gravel made her turn her head towards the windows. It was Griffiths approaching with two constables. She heard the hall door opened to admit them, but, beyond that, not a sound reached her ear, and she realised how fully she was cut off from communication with the rest of the household at the farther end of this unoccupied wing.
  Mr Craven, still reclining in his semi-trance, evidently had not the faintest suspicion that so important an event as the arrest of his only son on a charge of murder was about to be enacted in the house.
  Meantime, Griffiths and his constables had mounted the stairs leading to the north wing, and were being guided through the corridors to the sick-room by the flying figure of Moggie, the maid.
  'Hoot, mistress!' cried the girl, 'here are three men coming up the stairs â policemen, every one of them â will ye come and ask them what they be wanting?'
  Outside the door of the sick-room stood Mrs Craven â a tall, sharpfeatured woman with sandy hair going rapidly grey.
  'What is the meaning of this? What is your business here?' she said haughtily, addressing Griffiths, who headed the party.
  Griffiths respectfully explained what his business was, and requested her to stand on one side that he might enter her son's room.
  'This is my daughter's room; satisfy yourself of the fact,' said the lady, throwing back the door as she spoke.
  And Griffiths and his confreres entered, to find pretty Miss Craven, looking very white and scared, seated beside a fire in a long flowing
robe de chambre
.
  Griffiths departed in haste and confusion, without the chance of a professional talk with Loveday. That afternoon saw him telegraphing wildly in all directions, and despatching messengers in all quarters. Finally he spent over an hour drawing up an elaborate report to his chief at Newcastle, assuring him of the identity of one Harold Cousins, who had sailed in the
Bonnie Dundee
for Natal, with Harry Craven, of Troyte's Hill, and advising that the police authorities in that far-away district should be immediately communicated with.
  The ink had not dried on the pen with which this report was written before a note, in Loveday's writing, was put into his hand.