We had all been warned to appear before the magistrates upon the Thursday; but when the Thursday came there was no occasion for our testimony. A higher Judge had taken the matter in hand, and Jefferson Hope had been summoned before a tribunal where strict justice would be meted out to him. On the very night after his capture the aneurism burst, and he was found in the morning stretched upon the floor of the cell, with a placid smile upon his face, as though he had been able in his dying moments to look back upon a useful life, and on work well done.

“Gregson and Lestrade will be wild about his death,” Holmes remarked, as we chatted it over next evening. “Where will their grand advertisement be now?”

“I don’t see that they had very much to do with his capture,” I answered.

“What you do in this world is a matter of no consequence,” returned my companion, bitterly. “The question is, what can you make people believe that you have done? Never mind,” he continued, more brightly, after a pause. “I would not have missed the investigation for anything. There has been no better case within my recollection. Simple as it was, there were several most instructive points about it.”

“Simple!” I ejaculated.

“Well, really, really it can hardly be described as otherwise,” said Sherlock Holmes, smiling at my surprise. “The proof of its intrinsic simplicity is, that without any help save a few very ordinary deductions I was able to lay my hand upon the criminal within three days.”

“That is true,” said I.

“I have already explained to you that what is out of the common is usually a guide rather than a hindrance. In solving a problem of this sort, the grand thing is to be able to reason backward. That is a very useful accomplishment, and a very easy one, but people do not practise it much. In the everyday affairs of life it is more useful to reason forward, and so the other comes to be neglected. There are fifty who can reason synthetically for one who can reason analytically.”

“I confess,” said I, “that I do not quite follow you.”

“I hardly expected that you would. Let me see if I can make it clearer. Most people, if you describe a train of events to them will tell you what the result would be. They can put those events together in their minds, and argue from them that something will come to pass. There are few people, however, who, if you told them a result, would be able to evolve from their own inner consciousness what the steps were which led up to that result. This power is what I mean when I talk of reasoning backward, or analytically. ”

“I understand,” said I.

“Now this was a case in which you were given the result and had to find everything else for yourself. Now let me endeavour to show you the different steps in my reasoning. To begin at the beginning. I approached the house, as you know, on foot, and with my mind entirely free from all impressions. I naturally began by examining the roadway, and there, as I have already explained to you, I saw clearly the marks of a cab, which, I ascertained by inquiry, must have been there during the night. I satisfied myself that it was a cab and not a private carriage by the narrow gauge of the wheels. The ordinary London growler is considerably less wide than a gentleman’s brougham.

‘I haven’t any crayons,’ said Ursula.

‘There will be some somewhere—red and yellow, that’s all you want.’

Ursula sent out a boy on a quest.

‘It will make the books untidy,’ she said to Birkin, flushing deeply.

‘Not very,’ he said. ‘You must mark in these things obviously. It’s the fact you want to emphasise, not the subjective impression to record. What’s the fact?—red little spiky stigmas of the female flower, dangling yellow male catkin, yellow pollen flying from one to the other. Make a pictorial record of the fact, as a child does when drawing a face—two eyes, one nose, mouth with teeth—so—’ And he drew a figure on the blackboard.

At that moment another vision was seen through the glass panels of the door. It was Hermione Roddice. Birkin went and opened to her.

‘I saw your car,’ she said to him. ‘Do you mind my coming to find you? I wanted to see you when you were on duty.’

She looked at him for a long time, intimate and playful, then she gave a short little laugh. And then only she turned to Ursula, who, with all the class, had been watching the little scene between the lovers.

‘How do you do, Miss Brangwen,’ sang Hermione, in her low, odd, singing fashion, that sounded almost as if she were poking fun. ‘Do you mind my coming in?’

Her grey, almost sardonic eyes rested all the while on Ursula, as if summing her up.

‘Oh no,’ said Ursula.

‘Are you SURE?’ repeated Hermione, with complete sang froid, and an odd, half–bullying effrontery.

‘Oh no, I like it awfully,’ laughed Ursula, a little bit excited and bewildered, because Hermione seemed to be compelling her, coming very close to her, as if intimate with her; and yet, how could she be intimate?

This was the answer Hermione wanted. She turned satisfied to Birkin.

‘What are you doing?’ she sang, in her casual, inquisitive fashion.

‘Catkins,’ he replied.

‘Really!’ she said. ‘And what do you learn about them?’ She spoke all the while in a mocking, half teasing fashion, as if making game of the whole business. She picked up a twig of the catkin, piqued by Birkin’s attention to it.

She was a strange figure in the class–room, wearing a large, old cloak of greenish cloth, on which was a raised pattern of dull gold. The high collar, and the inside of the cloak, was lined with dark fur. Beneath she had a dress of fine lavender–coloured cloth, trimmed with fur, and her hat was close–fitting, made of fur and of the dull, green–and–gold figured stuff. She was tall and strange, she looked as if she had come out of some new, bizarre picture.

‘Do you know the little red ovary flowers, that produce the nuts? Have you ever noticed them?’ he asked her. And he came close and pointed them out to her, on the sprig she held.

‘No,’ she replied. ‘What are they?’