“The hero of the Long Island cave mystery?” said Holmes. “Sir, I am pleased to meet you.”

The American, a quiet, businesslike young man, with a clean-shaven, hatchet face, flushed up at the words of commendation. “I am on the trail of my life now, Mr. Holmes,” said he. “If I can get Gorgiano —”

“What! Gorgiano of the Red Circle?”

“Oh, he has a European fame, has he? Well, we’ve learned all about him in America. We know he is at the bottom of fifty murders, and yet we have nothing positive we can take him on. I tracked him over from New York, and I’ve been close to him for a week in London, waiting some excuse to get my hand on his collar. Mr. Gregson and I ran him to ground in that big tenement house, and there’s only the one door, so he can’t slip us. There’s three folk come out since he went in, but I’ll swear he wasn’t one of them.”

“Mr. Holmes talks of signals,” said Gregson. “I expect, as usual, he knows a good deal that we don’t.”

In a few clear words Holmes explained the situation as it had appeared to us.

The American struck his hands together with vexation.

“He’s on to us!” he cried.

“Why do you think so?”

“Well, it figures out that way, does it not? Here he he is, sending out messages to an accomplice — there are several of his gang in London. Then suddenly, just as by your own account he was telling them that there was danger, he broke short off. What could it mean except that from the window he had suddenly either caught sight of us in the street, or in some way come to understand how close the danger was, and that he must act right away if he was to avoid it? What do you suggest, Mr. Holmes?”

“That we go up at once and see for ourselves.”

“But we have no warrant for his arrest.”

“He is in unoccupied premises under suspicious circumstances,” said Gregson. “That is good enough for the moment. When we have him by the heels we can see if New York can’t help us to keep him. I’ll take the responsibility of arresting him now.”

Our official detectives may blunder in the matter of intelligence, but never in that of courage. Gregson climbed the stair to arrest this desperate murderer with the same absolutely quiet and businesslike bearing with which he would have ascended the official staircase of Scotland Yard. The Pinkerton man had tried to push past him, but Gregson had firmly elbowed him back. London dangers were the privilege of the London force.

The door of the left-hand flat upon the third landing was standing ajar. Gregson pushed it open. Within all was absolute silence and darkness. I struck a match and lit the detective’s lantern. As I did so, and as the flicker steadied into a flame, we all gave a gasp of surprise. On the deal boards of the carpetless floor there was outlined a fresh track of blood. The red steps pointed towards us and led away from an inner room, the door of which was closed. Gregson flung it open and held his light full blaze in front of him, while we all peered eagerly over his shoulders.

This was a nasty blow to Connie. Here she was, sure as life, coming in for her share of the lowness and dirt. She felt angry with him for not having got clear of a Bertha Coutts: nay, for ever having married her. Perhaps he had a certain hankering after lowness. Connie remembered the last night she had spent with him, and shivered. He had known all that sensuality, even with a Bertha Coutts! It was really rather disgusting. It would be well to be rid of him, clear of him altogether. He was perhaps really common, really low.

She had a revulsion against the whole affair, and almost envied the Guthrie girls their gawky inexperience and crude maidenliness. And she now dreaded the thought that anybody would know about herself and the keeper. How unspeakably humiliating! She was weary, afraid, and felt a craving for utter respectability, even for the vulgar and deadening respectability of the Guthrie girls. If Clifford knew about her affair, how unspeakably humiliating! She was afraid, terrified of society and its unclean bite. She almost wished she could get rid of the child again, and be quite clear. In short, she fell into a state of funk.

As for the scent–bottle, that was her own folly. She had not been able to refrain from perfuming his one or two handkerchiefs and his shirts in the drawer, just out of childishness, and she had left a little bottle of Coty’s Wood–violet perfume, half empty, among his things. She wanted him to remember her in the perfume. As for the cigarette–ends, they were Hilda’s.

She could not help confiding a little in Duncan Forbes. She didn’t say she had been the keeper’s lover, she only said she liked him, and told Forbes the history of the man.

‘Oh,’ said Forbes, ‘you’ll see, they’ll never rest till they’ve pulled the man down and done him its. If he has refused to creep up into the middle classes, when he had a chance; and if he’s a man who stands up for his own sex, then they’ll do him in. It’s the one thing they won’t let you be, straight and open in your sex. You can be as dirty as you like. In fact the more dirt you do on sex the better they like it. But if you believe in your own sex, and won’t have it done dirt to: they’ll down you. It’s the one insane taboo left: sex as a natural and vital thing. They won’t have it, and they’ll kill you before they’ll let you have it. You’ll see, they’ll hound that man down. And what’s he done, after all? If he’s made love to his wife all ends on, hasn’t he a right to? She ought to be proud of it. But you see, even a low bitch like that turns on him, and uses the hyena instinct of the mob against sex, to pull him down. You have a snivel and feel sinful or awful about your sex, before you’re allowed to have any. Oh, they’ll hound the poor devil down.’

Connie had a revulsion in the opposite direction now. What had he done, after all? what had he done to herself, Connie, but give her an exquisite pleasure and a sense of freedom and life? He had released her warm, natural sexual flow. And for that they would hound him down.