too high up to admit of his looking in. He felt about until he had a stone to stand on.
Softly he drew himself up inch by inch. He could hear the murmur of voices in the room. Now the top of his head was on a level with the sill. A few more inches and his eyes could take in the room and the occupants. He was scarcely breathing. Up, up he raised himself until he could look into the apartment, and the sight which met his eyes nearly caused him to lose his hold and topple backward.
For grouped around a table in a big room were the three men whom he had seen in the automobile. But what attracted his attention more than the sight of the men was an object on the table. It was the stolen model! The men were inspecting it, and operating it, as he could see. One of the trio had a bundle of papers in his hand, and Tom was sure they were the ones stolen from him. But there could be no doubt about the model of the turbine motor. There it was in plain sight. He had tracked the thieves to their hiding place.
Then, as he watched, Tom saw one of the men produce from under the table a box, into which the model was placed. The papers were next put in, and a cover was nailed on. Then the men appeared to consult among themselves.
By their gestures Tom concluded that they
