“I have given her two days’ holiday,” Anna answered. “She has gone down into the country.”
“And no one else—has a key?”
“I believe,” she said, “that that man must have one. I am safe while I am there, for I have had bolts fitted everywhere, and a pane of glass in the front door. But I am always afraid that he may get in while I am away. Look! Is that some one coming out?”
The front door of the flats stood open, and through it a woman, slim and veiled, passed on to the pavement and turned with swift footsteps in the opposite direction. Anna watched her with curious eyes.
“Is it any one you know?” Brendon asked.
“I am not sure,” Anna answered. “But, of course, she may have come from one of the other flats.”
“Perhaps,” he said, “you had better let me have your key, and I will go up and explore.”
“We will go together,” she answered.
They crossed the street, and entering the front door passed up the outside stone steps of the flat. Anna herself opened the hall door. They stood for a moment in the passage and listened. Silence! Then Anna clutched her companion’s arm.
“What was that?” she asked sharply.