Mrs. Baggert, unless she's sick, and got up to take some medicine."
He listened intently. Below, in the dining-room, he could hear stealthy movements.
"Mrs. Baggert would never move around like that," he decided. "She's too heavy. I wonder—it's a burglar—one of the gang has gotten in!" he exclaimed in tense tones. "I'm going to catch him at it!"
Hurriedly he slipped on some clothes, and then, having softly turned on the electric light in his room, he took from a corner a small rifle, which he made sure was loaded. Then, having taken a small electric flashlight, of the kind used by policemen, and sometimes by burglars, he started on tiptoe toward the lower floor.
As Tom softly descended the stairs he could more plainly hear the movements of the intruder. He made out now that the burglar was in Mr. Swift's study, which opened from the dining-room.
"He's after dad's papers!" thought Tom. "I wonder which one this is?"
The youth had often gone hunting in the woods, and he knew how to approach cautiously. Thus he was able to reach the door of the dining-room without being detected. He had no need to flash his light, for the intruder was doing that so fre-
