“This may be very interesting,” said Lestrade, in the injured tone of one who suspects that he is being laughed at; “I cannot see, however, what it has to do with the death of Mr. Joseph Stangerson.”

“Patience, my friend, patience! You will find in time that it has everything to do with it. I shall now add a little milk to make the mixture palatable, and on presenting it to the dog we find that he laps it up readily enough.”

As he spoke he turned the contents of the wineglass into a saucer and placed it in front of the terrier, who speedily licked it dry. Sherlock Holmes’s earnest demeanour had so far convinced us that we all sat in silence, watching the animal intently, and expecting some startling effect. None such appeared, however. The dog continued to lie stretched upon the cushion, breathing in a laboured way, but apparently neither the better nor the worse for its draught.

Holmes had taken out his watch, and as minute followed minute without result, an expression of the utmost chagrin and disappointment appeared upon his features. He gnawed his lip, drummed his fingers upon the table, and showed every other symptom of acute impatience. So great was his emotion that I felt sincerely sorry for him, while the two detectives smiled derisively, derisively by no means displeased at this check which he had met.

“It can’t be a coincidence,” he cried, at last springing from his chair and pacing wildly up and down the room; “it is impossible that it should be, a mere coincidence. The very pills which I suspected in the case of Drebber are actually found after the death of Stangerson. And yet they are inert. What can it mean? Surely my whole chain of reasoning cannot have been false. It is impossible! And yet this wretched dog is none the worse. Ah, I have it! I have it!” With a perfect shriek of delight he rushed to the box, cut the other pill in two, dissolved it, added milk, and presented it to the terrier. The unfortunate creature’s tongue seemed hardly to have been moistened in it before it gave a convulsive shiver in every limb, and lay as rigid and lifeless as if it had been struck by lightning.

Sherlock Holmes drew a long breath, and wiped the perspiration from his forehead. “I should have more faith,” he said; “I ought to know by this time that when a fact appears to be opposed to a long train of deductions, it invariably proves to be capable of bearing some other interpretation. Of the two pills in that box, one was of the most deadly poison, and the other was entirely harmless. I ought to have known that before ever I saw the box at all.”

This last statement appeared to me to be so startling that I could hardly believe that he was in his sober senses. There was the dead dog, however, to prove that his conjecture had been correct. It seemed to me that the mists in my own mind were gradually clearing away, and I began to have a dim, vague perception of the truth.

“All this seems strange to you,” continued Holmes, “because you failed at the beginning of the inquiry to grasp the importance of the single real clue which was presented to you. I had the good fortune to seize upon that, and everything which has occurred since then has served to confirm my original supposition, and, indeed, was the logical sequence of it. Hence things which have perplexed you and made the case more obscure have served to enlighten me and to strengthen my conclusions. It is a mistake to confound strangeness with mystery. The most commonplace crime is often the most mysterious, because it presents no new or special features from which deductions may be drawn. This murder would have been infinitely more difficult to unravel had the body of the victim been simply found lying in the roadway without any of those outre and sensational accompaniments which have rendered it remarkable. These strange details, far from making the case more difficult, have really had the effect of making it less so.”

‘Why?’ he repeated, in his strange, soft, penetrating voice.

She looked round at him, rather defiantly.

‘Because I said I was going to be married tomorrow, and he bullied me.’

‘Why did he bully you?’

Her mouth dropped again, she remembered the scene once more, the tears came up.

‘Because I said he didn’t care—and he doesn’t, it’s only his domineeringness that’s hurt—’ she said, her mouth pulled awry by her weeping, all the time she spoke, so that he almost smiled, it seemed so childish. Yet it was not childish, it was a mortal conflict, a deep wound.

‘It isn’t quite true,’ he said. ‘And even so, you shouldn’t SAY it.’

‘It IS true—it IS true,’ she wept, ‘and I won’t be bullied by his pretending it’s love—when it ISN’T—he doesn’t care, how can he—no, he can’t–’

He sat in silence. She moved him beyond himself.

‘Then you shouldn’t rouse him, if he can’t,’ replied Birkin quietly.

‘And I HAVE loved him, I have,’ she wept. ‘I’ve loved him always, and he’s always done this to me, he has—’

‘It’s been a love of opposition, then,’ he said. ‘Never mind—it will be all right. It’s nothing desperate.’

‘Yes,’ she wept, ‘it is, it is.’

‘Why?’

‘I shall never see him again—’

‘Not immediately. Don’t cry, you had to break with him, it had to be—don’t cry.’

He went over to her and kissed her fine, fragile hair, touching her wet cheeks gently.

‘Don’t cry,’ he repeated, ‘don’t cry any more.’

He held her head close against him, very close and quiet.

At last she was still. Then she looked up, her eyes wide and frightened.

‘Don’t you want me?’ she asked.

‘Want you?’ His darkened, steady eyes puzzled her and did not give her play.

‘Do you wish I hadn’t come?’ she asked, anxious now again for fear she might be out of place.

‘No,’ he said. ‘I wish there hadn’t been the violence—so much ugliness—but perhaps it was inevitable.’

She watched him in silence. He seemed deadened.

‘But where shall I stay?’ she asked, feeling humiliated.

He thought for a moment.

‘Here, with me,’ he said. ‘We’re married as much today as we shall be tomorrow.’

‘But—’

‘I’ll tell Mrs Varley,’ he said. ‘Never mind now.’

He sat looking at her. She could feel his darkened steady eyes looking at her all the time. It made her a little bit frightened. She pushed her hair off her forehead nervously.

‘Do I look ugly?’ she said.

And she blew her nose again.

A small smile came round his eyes.