“I can’t shoot the fellow in cold blood,” he said to himself. Just then his hand touched the knob of a door which he knew opened into a large closet. An idea struck him. He opened the door very quietly, and then, picking up the rug from the hall floor, was ready to carry out his plan.

The burglar was nearing the door. “Come up as soon as you can,” he said, and as a muffled voice from somewhere answered, “All right,” he opened the door and stepped into the hall.

With a bound Pennington threw the heavy rug over the man’s head, deftly twisting it so that he could make no sound to warn his comrades. But the doctor had not thought of the basket of silver which the man carried, and it fell to the floor with a crash. There was a quick movement in the direction from which the answering voice had come, and a scream from upstairs. Pennington fairly hurled his prisoner into the closet and locked the door; then he stood a moment uncertain whether to run upstairs to the aid of Mrs. Graham and Clara or search for the other burglar. Suddenly he heard a step behind him. Before he could turn he received a blow on the side of his head. He fell to the floor, where he lay half stunned. Then his hands were tied behind him, and he felt himself picked up by his assailant and held a moment uncertainly in mid air.

“Put him in here, Fred,” said a voice, and, to his horror, Pennington heard the key turn in the lock, and the next instant he was thrown into the closet with as little ceremony as he had himself used towards the burglar. Then the door was locked.

A sudden cough from the burglar made Pennington’s hair stand on end, and he shivered when he heard the man, sputtering and coughing, feeling audibly for what Pennington knew was his revolver. He was as brave as most men, and at once determined not to lie still at the mercy of a desperate ruffian. Very cautiously he tried to pull his hands out of the bonds that held them. To his joy, he found that the hastily-tied knots would give way at a little straining.

Meanwhile, upstairs, Mrs. Graham and Clara had gone to bed together for additional safety. Clara did not tell her mother, but to herself confessed that she had every confidence in Dr. Pennington, and so went calmly to sleep. Mrs. Graham was less confident than her daughter, and her sleep was light and broken. The consequence was that the fall of the silver basket woke her up instantly. She gave a scream.

“Clara!” she cried, shaking her daughter. “Clara, the burglars are here!”

“Where?” demanded Clara, sitting bolt upright, and looking in bewilderment out from the mist of her long brown hair.

“Down stairs,” said Mrs. Graham, in a hoarse whisper. “Help me, Clara, and scream.” With that she set the example by uttering a shriek that rang through the house, waking the servants in their rooms. Clara sprang from the bed, and, scarcely knowing what she did, began piling all the movable furniture in front of the door, while her mother uttered scream after scream with the regularity of a piece of clock-work.

There was a step in the hall, then another.