leave a track on the path, and on the other an even clearer

  one on the soft bed?"

  "Yes, sir, she must have been a cool hand."

  I saw an intent look pass over Holmes's face.

  "You say that she must have come back this way?"

  "Yes, sir; there is no other."

  "On this strip of grass?"

  "Certainly, Mr. Holmes."

  "Hum! It was a very remarkable performance -- very

  remarkable. Well, I think we have exhausted the path. Let

  us go farther. This garden door is usually kept open, I

  suppose? Then this visitor had nothing to do but to walk

  in. The idea of murder was not in her mind, or she would

  have provided herself with some sort of weapon, instead of

  having to pick this knife off the writing-table. She

  advanced along this corridor, leaving no traces upon the

  cocoanut matting. Then she found herself in this study.

  How long was she there? We have no means of judging."

  "Not more than a few minutes, sir. I forgot to tell you

  that Mrs. Marker, the housekeeper, had been in there tidying

  not very long before -- about a quarter of an hour, she

  says."

  "Well, that gives us a limit. Our lady enters this room and

  what does she do? She goes over to the writing-table. What

  for? Not for anything in the drawers. If there had been

  anything worth her taking it would surely have been locked

  up. No; it was for something in that wooden bureau.

  Halloa! what is that scratch upon the face of it? Just hold

  a match, Watson. Why did you not tell me of this, Hopkins?"

  The mark which he was examining began upon the brass work on

  the right-hand side of the keyhole, and extended for about

  four inches, where it had scratched the varnish from the

  surface.

  "I noticed it, Mr. Holmes. But you'll always find scratches

  round a keyhole."

  "This is recent, quite recent. See how the brass shines

  where it is cut. An old scratch would be the same colour as

  the surface. Look at it through my lens. There's the

  varnish, too, like earth on each side of a furrow. Is Mrs.

  Marker there?"

  A sad-faced, elderly woman came into the room.

  "Did you dust this bureau yesterday morning?"

  "Yes, sir."

  "Did you notice this scratch?"

  "No, sir, I did not."

  "I am sure you did not, for a duster would have swept away

  these shreds of varnish. Who has the key of this bureau?"

  "The Professor keeps it on his watch-chain."

  "Is it a simple key?"

  "No, sir; it is a Chubb's key."

  "Very good. Mrs. Marker, you can go. Now we are making a

  little progress. Our lady enters the room, advances to the

  bureau, and either opens it or tries to do so. While she is

  thus engaged young Willoughby Smith enters the room. In her

  hurry to withdraw the key she makes this scratch upon the

  door. He seizes her, and she, snatching up the nearest

  object, which happens to be this knife, strikes at him in

  order to make him let go his hold. The blow is a fatal one.

  He falls and she escapes, either with or without the object

  for which she has come. Is Susan the maid there? Could

  anyone have got away through that door after the time that

  you heard the cry, Susan?"

  "No sir; it is impossible. Before I got down the stair I'd

  have seen anyone in the passage. Besides, the door never

  opened, for I would have heard it."

  "That settles this exit. Then no doubt the lady went out

  the way she came. I understand that this other passage

  leads only to the Professor's room. There is no exit that

  way?"

  "No, sir."

  "We shall go down it and make the acquaintance of the

  Professor. Halloa, Hopkins! this is very important, very

  important indeed. The Professor's corridor is also lined

  with cocoanut matting."

  "Well, sir, what of that?"

  "Don't you see any bearing upon the case? Well, well, I

  don't insist upon it. No doubt I am wrong. And yet it

  seems to me to be suggestive. Come with me and introduce

  me."

  We passed down the passage, which was of the same length as

  that which led to the garden. At the end was a short flight

  of steps ending in a door. Our guide knocked, and then

  ushered us into the Professor's bedroom.

  It was a very large chamber, lined with innumerable volumes,

  which had overflowed from the shelves and lay in piles in

  the corners, or were stacked all round at the base of the

  cases. The bed was in the centre of the room, and in it,

  propped up with pillows, was the owner of the house. I have

  seldom seen a more remarkable-looking person. It was a

  gaunt, aquiline face which was turned towards us, with

  piercing dark eyes, which lurked in deep hollows under

  overhung and tufted brows. His hair and beard were white,

  save that the latter was curiously stained with yellow

  around his mouth. A cigarette glowed amid the tangle of

  white hair, and the air of the room was fetid with stale

  tobacco-smoke. As he held out his hand to Holmes I

  perceived that it also was stained yellow with nicotine.

  "A smoker, Mr. Holmes?" said he, speaking well-chosen

  English with a curious little mincing accent. "Pray take a

  cigarette. And you, sir? I can recommend them, for I have

  them especially prepared by Ionides of Alexandria. He sends

  me a thousand at a time, and I grieve to say that I have to

  arrange for a fresh supply every fortnight. Bad, sir, very

  bad, but an old man has few pleasures. Tobacco and my work

  -- that is all that is left to me."

  Holmes had lit a cigarette, and was shooting little darting

  glances all over the room.

  "Tobacco and my work, but now only tobacco," the old man

  exclaimed. "Alas! what a fatal interruption! Who could

  have foreseen such a terrible catastrophe? So estimable a

  young man! I assure you that after a few months' training

  he was an admirable assistant. What do you think of the

  matter, Mr. Holmes?"

  "I have not yet made up my mind."

  "I shall indeed be indebted to you if you can throw a light

  where all is so dark to us. To a poor bookworm and invalid

  like myself such a blow is paralyzing. I seem to have lost

  the faculty of thought. But you are a man of action -- you

  are a man of affairs. It is part of the everyday routine of

  your life. You can preserve your balance in every

  emergency. We are fortunate indeed in having you at our

  side."

  Holmes was pacing up and down one side of the room whilst

  the old Professor was talking. I observed that he was

  smoking with extraordinary rapidity. It was evident that he

  shared our host's liking for the fresh Alexandrian

  cigarettes.

  "Yes, sir, it is a crushing blow," said the old man. "That

  is my _magnum opus_ -- the pile of papers on the side table

  yonder. It i
s my analysis of the documents found in the

  Coptic monasteries of Syria and Egypt, a work which will cut

  deep at the very foundations of revealed religion. With my

  enfeebled health I do not know whether I shall ever be able

  to complete it now that my assistant has been taken from me.

  Dear me, Mr. Holmes; why, you are even a quicker smoker than

  I am myself."

  Holmes smiled.

  "I am a connoisseur," said he, taking another cigarette from

  the box -- his fourth -- and lighting it from the stub of

  that which he had finished. "I will not trouble you with

  any lengthy cross-examination, Professor Coram, since I

  gather that you were in bed at the time of the crime and

  could know nothing about it. I would only ask this. What

  do you imagine that this poor fellow meant by his last

  words: 'The Professor -- it was she'?"

  The Professor shook his head.

  "Susan is a country girl," said he, "and you know the

  incredible stupidity of that class. I fancy that the poor

  fellow murmured some incoherent delirious words, and that

  she twisted them into this meaningless message."

  "I see. You have no explanation yourself of the tragedy?"

  "Possibly an accident; possibly -- I only breathe it among

  ourselves -- a suicide. Young men have their hidden

  troubles -- some affair of the heart, perhaps, which we have

  never known. It is a more probable supposition than

  murder."

  "But the eye-glasses?"

  "Ah! I am only a student -- a man of dreams. I cannot

  explain the practical things of life. But still, we are

  aware, my friend, that love-gages may take strange shapes.

  By all means take another cigarette. It is a pleasure to

  see anyone appreciate them so. A fan, a glove, glasses --

  who knows what article may be carried as a token or

  treasured when a man puts an end to his life? This

  gentleman speaks of footsteps in the grass; but, after all,

  it is easy to be mistaken on such a point. As to the knife,

  it might well be thrown far from the unfortunate man as he

  fell. It is possible that I speak as a child, but to me it

  seems that Willoughby Smith has met his fate by his own

  hand."

  Holmes seemed struck by the theory thus put forward, and he

  continued to walk up and down for some time, lost in thought

  and consuming cigarette after cigarette.

  "Tell me, Professor Coram," he said, at last, "what is in

  that cupboard in the bureau?"

  "Nothing that would help a thief. Family papers, letters

  from my poor wife, diplomas of Universities which have done

  me honour. Here is the key. You can look for yourself."

  Holmes picked up the key and looked at it for an instant;

  then he handed it back.

  "No; I hardly think that it would help me," said he. "I

  should prefer to go quietly down to your garden and turn the

  whole matter over in my head. There is something to be said

  for the theory of suicide which you have put forward. We

  must apologize for having intruded upon you, Professor

  Coram, and I promise that we won't disturb you until after

  lunch. At two o'clock we will come again and report to you

  anything which may have happened in the interval."

  Holmes was curiously distrait, and we walked up and down the

  garden path for some time in silence.

  "Have you a clue?" I asked, at last.

  "It depends upon those cigarettes that I smoked," said he.

  "It is possible that I am utterly mistaken. The cigarettes

  will show me."

  "My dear Holmes," I exclaimed, "how on earth ----"

  "Well, well, you may see for yourself. If not, there's no

  harm done. Of course, we always have the optician clue to

  fall back upon, but I take a short cut when I can get it.

  Ah, here is the good Mrs. Marker! Let us enjoy five minutes

  of instructive conversation with her."

  I may have remarked before that Holmes had, when he liked, a

  peculiarly ingratiating way with women, and that he very

  readily established terms of confidence with them. In half

  the time which he had named he had captured the

  housekeeper's goodwill, and was chatting with her as if he

  had known her for years.

  "Yes, Mr. Holmes, it is as you say, sir. He does smoke

  something terrible. All day and sometimes all night, sir.

  I've seen that room of a morning -- well, sir, you'd have

  thought it was a London fog. Poor young Mr. Smith, he was a

  smoker also, but not as bad as the Professor. His health --

  well, I don't know that it's better nor worse for the

  smoking."

  "Ah!" said Holmes, "but it kills the appetite."

  "Well, I don't know about that, sir."

  "I suppose the Professor eats hardly anything?"

  "Well, he is variable. I'll say that for him."

  "I'll wager he took no breakfast this morning, and won't

  face his lunch after all the cigarettes I saw him consume."

  "Well, you're out there, sir, as it happens, for he ate a

  remarkable big breakfast this morning. I don't know when

  I've known him make a better one, and he's ordered a good

  dish of cutlets for his lunch. I'm surprised myself, for

  since I came into that room yesterday and saw young Mr.

  Smith lying there on the floor I couldn't bear to look at

  food. Well, it takes all sorts to make a world, and the

  Professor hasn't let it take his appetite away."

  We loitered the morning away in the garden. Stanley Hopkins

  had gone down to the village to look into some rumours of a

  strange woman who had been seen by some children on the

  Chatham Road the previous morning. As to my friend, all his

  usual energy seemed to have deserted him. I had never known

  him handle a case in such a half-hearted fashion. Even the

  news brought back by Hopkins that he had found the children

  and that they had undoubtedly seen a woman exactly

  corresponding with Holmes's description, and wearing either

  spectacles or eye-glasses, failed to rouse any sign of keen

  interest. He was more attentive when Susan, who waited upon

  us at lunch, volunteered the information that she believed

  Mr. Smith had been out for a walk yesterday morning, and

  that he had only returned half an hour before the tragedy

  occurred. I could not myself see the bearing of this

  incident, but I clearly perceived that Holmes was weaving it

  into the general scheme which he had formed in his brain.

  Suddenly he sprang from his chair and glanced at his watch.

  "Two o'clock, gentlemen," said he. "We must go up and have

  it out with our friend the Professor."

  The old man had just finished his lunch, and certainly his

  empty dish bore evidence to the good appetite with which his

  housekeeper had credited him. He was, indeed, a weird

  figure as he turned his white mane and his glowing eyes

  towards us. The eternal cigarette smouldered in his mouth.

  He had been dressed and was seated in an ar
m-chair by the

  fire.

  "Well, Mr. Holmes, have you solved this mystery yet?" He

  shoved the large tin of cigarettes which stood on a table

  beside him towards my companion. Holmes stretched out his

  hand at the same moment, and between them they tipped the

  box over the edge. For a minute or two we were all on our

  knees retrieving stray cigarettes from impossible places.

  When we rose again I observed that Holmes's eyes were

  shining and his cheeks tinged with colour. Only at a crisis

  have I seen those battle-signals flying.

  "Yes," said he, "I have solved it."

  Stanley Hopkins and I stared in amazement. Something like a

  sneer quivered over the gaunt features of the old Professor.

  "Indeed! In the garden?"

  "No, here."

  "Here! When?"

  "This instant."

  "You are surely joking, Mr. Sherlock Holmes. You compel me

  to tell you that this is too serious a matter to be treated

  in such a fashion."

  "I have forged and tested every link of my chain, Professor

  Coram, and I am sure that it is sound. What your motives

  are or what exact part you play in this strange business I

  am not yet able to say. In a few minutes I shall probably

  hear it from your own lips. Meanwhile I will reconstruct

  what is past for your benefit, so that you may know the

  information which I still require.

  "A lady yesterday entered your study. She came with the

  intention of possessing herself of certain documents which

  were in your bureau. She had a key of her own. I have had

  an opportunity of examining yours, and I do not find that

  slight discoloration which the scratch made upon the varnish

  would have produced. You were not an accessory, therefore,

  and she came, so far as I can read the evidence, without

  your knowledge to rob you."

  The Professor blew a cloud from his lips. "This is most

  interesting and instructive," said he. "Have you no more to

  add? Surely, having traced this lady so far, you can also

  say what has become of her."

  "I will endeavour to do so. In the first place she was

  seized by your secretary, and stabbed him in order to

  escape. This catastrophe I am inclined to regard as an

  unhappy accident, for I am convinced that the lady had no

  intention of inflicting so grievous an injury. An assassin

  does not come unarmed. Horrified by what she had done she

  rushed wildly away from the scene of the tragedy.

  Unfortunately for her she had lost her glasses in the

  scuffle, and as she was extremely short-sighted she was

  really helpless without them. She ran down a corridor,

  which she imagined to be that by which she had come -- both

  were lined with cocoanut matting -- and it was only when it

  was too late that she understood that she had taken the

  wrong passage and that her retreat was cut off behind her.

  What was she to do? She could not go back. She could not

  remain where she was. She must go on. She went on. She

  mounted a stair, pushed open a door, and found herself in

  your room."

  The old man sat with his mouth open staring wildly at

  Holmes. Amazement and fear were stamped upon his expressive

  features. Now, with an effort, he shrugged his shoulders

  and burst into insincere laughter.

  "All very fine, Mr. Holmes," said he. "But there is one

  little flaw in your splendid theory. I was myself in my

  room, and I never left it during the day."

  "I am aware of that, Professor Coram."

  "And you mean to say that I could lie upon that bed and not

  be aware that a woman had entered my room?"

  "I never said so. You _were_ aware of it. You spoke with her.

  You recognised her. You aided her to escape."

  Again the Professor burst into high-keyed laughter.

  He had risen to his feet and his eyes glowed like embers.

  "You are mad!" he cried. "You are talking insanely.

  I helped her to escape? Where is she now?"