His first step was to set Ned at work on financial matters, to ascertain just how much longer the Swift Construction Company could operate without going to the wall. Its credit was excellent, which was a great deal in its favor. And Tom hoped soon to have his talking pictures in shape to offer some of the machines for sale, or at least to sell stock in a company that might market them to the retail trade. In this way he would be assured soon of a large amount of ready cash. He knew several firms who would be willing to underwrite an issue of bonds, once he could demonstrate that his machine was a success. Having attended to these money matters, which were always more or less of a bore to Tom, the young inventor turned his attention to matters of more interest to him. One was to see that the delicate mechanism of his invention had not been disturbed during the night, and the other was to make a more careful examination with a view to finding out how his plant had been mined by the conspirators. Koku and Eradicate had both slept in the private laboratory, and on Tom’s entrance they reported that nothing unusual had occurred during the night. It was the fear that, after all, something untoward might take place that had prompted Ned to spend the night with his chum. “So far so good!” mused Tom, after he had made sure his invention was in working order. “Now for a look around the grounds.” He soon saw what had been apparent at the casual inspection the night before, namely, that the plotters had tunneled under the fence in order to plant their bombs. Doubtless, they had found out to their sorrow that the wires on top of the barrier carried a disabling current of electricity. And it was in that way that the gang had gained entrance to the grounds. They had worked in secret, by night it was likely, and had thus been able to plant several dangerous bombs and run wires attached to them outside the fence and into the little gully mentioned before. All that was needed was the exploding spark and the Swift plant would have been a mass of ruins. The bombs had been carefully taken up and soaked in water. They were then—and this work was only now finished—dissected in an effort to learn some clue as to the constructors. But the work had been cunningly done. Tom suspected that the gang had hired some band of anarchists to make the bombs for them, probably keeping the makers in ignorance of what the deadly machines were to be used for. Once the bombs were removed, the connecting wires pulled up and all traces of the work removed, Tom had some of his men arrange matters so that a recurrence of the danger was impossible. At intervals along the fence metal rods were driven into the earth and so arranged, by means of electric wires, that any disturbance of the earth near them would be registered on dials in the central watch tower. “That will keep them out, or at least give warning of their attempts,” said Tom.