“At what address?”

“American Exchange, Strand — to be left till called for. They are both from the Guion Steamship Company, and refer to the sailing of their boats from Liverpool. It is clear that this unfortunate man was about to return to New York.”

“Have you made any inquiries as to this man Stangerson?”

“I did it at once, sir,” said Gregson. “I have had advertisements sent to all the newspapers, and one of my men has gone to the American Exchange, but he has not returned yet.”

“Have you sent to Cleveland?”

“We telegraphed this morning.”

“How did you word your inquiries?”

“We simply detailed the circumstances, and said that we should be glad of any information which could help us.”

“You did not ask for particulars on any point which appeared to you to be crucial?”

“I asked about Stangerson.”

“Nothing else? Is there no circumstance on which this whole case appears to hinge? Will you not telegraph again?”

“I have said all I have to say,” said Gregson, in an offended voice.

Sherlock Holmes chuckled to himself, and appeared to be about to make some remark, when Lestrade, who had been in the front room while we were were holding this conversation in the hall, reappeared upon the scene, rubbing his hands in a pompous and self-satisfied manner.

“Mr. Gregson,” he said, “I have just made a discovery of the highest importance, and one which would have been overlooked had I not made a careful examination of the walls.”

The little man’s eyes sparkled as he spoke, and he was evidently in a state of suppressed exultation at having scored a point against his colleague.

“Come here,” he said, bustling back into the room, the atmosphere of which felt clearer since the removal of its ghastly inmate. “Now, stand there!”

He struck a match on his boot and held it up against the wall.

“Look at that!” he said, triumphantly.

I have remarked that the paper had fallen away in parts. In this particular corner of the room a large piece had peeled off, leaving a yellow square of coarse plastering. Across this bare space there was scrawled in blood-red letters a single word —

RACHE

“What do you think of that?” cried the detective, with the air of a showman exhibiting his show. “This was overlooked because it was in the darkest corner of the room, and no one thought of looking there. The murderer has written it with his or her own blood. See this smear where it has trickled down the wall! That disposes of the idea of suicide anyhow. Why was that corner chosen to write it on? I will tell you. See that candle on the mantelpiece. It was lit at the time, and if it was lit this corner would be the brightest instead of the darkest portion of the wall.”

“And what does it mean now that you have found it?” asked Gregson in a depreciatory voice.

‘Exactly,’ he replied.

‘Mightn’t they?’ she asked again.

‘Just as well,’ he repeated. And there was a little pause.

‘Except that they ARE there, and that’s a nuisance,’ she said. ‘There are my sons–in–law,’ she went on, in a sort of monologue. ‘Now Laura’s got married, there’s another. And I really don’t know John from James yet. They come up to me and call me mother. I know what they will say—“how are you, mother?” I ought to say, “I am not your mother, in any sense.” But what is the use? There they are. I have had children of my own. I suppose I know them from another woman’s children.’

‘One would suppose so,’ he said.

She looked at him, somewhat surprised, forgetting perhaps that she was talking to him. And she lost her thread.

She looked round the room, vaguely. Birkin could not guess what she was looking for, nor what she was thinking. Evidently she noticed her sons.

‘Are my children all there?’ she asked him abruptly.

He laughed, startled, afraid perhaps.

‘I scarcely know them, except Gerald,’ he replied.

‘Gerald!’ she exclaimed. ‘He’s the most wanting of them all. You’d never think it, to look at him now, would you?’

‘No,’ said Birkin.

The mother looked across at her eldest son, stared at him heavily for some time.

‘Ay,’ she said, in an incomprehensible monosyllable, that sounded profoundly cynical. Birkin felt afraid, as if he dared not realise. And Mrs Crich moved away, forgetting him. But she returned on her traces.

‘I should like him to have a friend,’ she said. ‘He has never had a friend.’

Birkin looked down into her eyes, which were blue, and watching heavily. He could not understand them. ‘Am I my brother’s keeper?’ he said to himself, almost flippantly.

Then he remembered, with a slight shock, that that was Cain’s cry. And Gerald was Cain, if anybody. Not that he was Cain, either, although he had slain his brother. There was such a thing as pure accident, and the consequences did not attach to one, even though one had killed one’s brother in such wise. Gerald as a boy had accidentally killed his brother. What then? Why seek to draw a brand and a curse across the life that had caused the accident? A man can live by accident, and die by accident. Or can he not? Is every man’s life subject to pure accident, is it only the race, the genus, the species, that has a universal reference? Or is this not true, is there no such thing as pure accident? Has EVERYTHING that happens a universal significance? Has it? Birkin, pondering as he stood there, had forgotten Mrs Crich, as she had forgotten him.

He did not believe that there was any such thing as accident. It all hung together, in the deepest sense.

Just as he had decided this, one of the Crich daughters came up, saying: