"Besides," he continued, "neither of them had a latchkey to give to any outside person. The two women slept together in one room. At the time of the robbery there was no butler——"
Annesley heard no more. Suddenly the door of her spirit seemed to close. She was shut up within herself, listening to some voice there.
"What became of your latchkey?" it asked.
The blood streamed to her face and made her ears tingle, as it used to do when she had been scolded by Mrs. Ellsworth. If any one had looked at her then, it must have been to wonder what Sir Elmer Cartwright or Lord John Dormer had said to make Mrs. Nelson Smith blush so furiously.
She was remembering what she had done with her latchkey. She had given it to Knight to open the front door, and so escape from the two watchers who had followed them in a taxi to Torrington Square. She had never thought of it from that moment to this. Could it be possible that some thief had stolen the latchkey from Knight, and used it when Mrs. Ellsworth's house was robbed?
Her thoughts concentrated violently upon the key. Had her neighbours spoken she would not have heard; but they did not speak. She was free to let her thoughts run where they chose. They ran back to the first night of her meeting with Nelson Smith, and her arrival with him at the house in Torrington Square. She recalled, as if it were a moment ago, putting the key into his hand, which had been warm and steady, despite the danger he was in, while hers had been trembling and cold. She said to herself that she must ask Knight, as soon as they were alone together, what he had done with the key, whether he had left it in the house or flung it away.
But of course he must have left it in the house, or close by, otherwise no thief would have known where it belonged. That made her feel guilty toward Ruthven Smith. She ought not to have been so utterly absorbed in her own affairs that night. She ought to have asked to have the key back, and then to have laid it where it could be found by Mrs. Ellsworth in the morning.
Perhaps, indirectly, she was responsible for the burglary at that house. And, now she thought of it, what a queer burglary it had been! The thieves must certainly have known something about Mrs. Ellsworth, or else, in helping themselves to her valuables, it would not have occurred to them to scrawl a sarcastic message.
That message had delighted Knight when he heard of it. He had laughed and said, "I like those chaps! They can have my money when they want it!"
Since then they had had his money, and other possessions. If the theory of the police were right, that a gang of foreign thieves was "working" London, Annesley was glad that she and Knight had been robbed. It made her feel less to blame for her carelessness in the matter of that latchkey.