"Oh, I don't mean he's afraid. We've seen proof enough of his courage, and all that. But I mean don't you think he wants stirring up a bit?" "He is going to Washington to-morrow, Father. He told me so to-night. And it may be--" "Oh, well, then maybe it's all right," hastily said Mr. Nestor. "He may he going to get a commission in the engineer corps. It isn't like Tom Swift to hang back, and yet it does begin to look as though he cared more for his queer inventions--machines that butt down fences than for helping Uncle Sam. But I'll reserve judgment." "You'd better, Father!" and Mary laughed--a little. Yet there was a worried look on her face. During the next few nights Mr. Nestor made it a habit to take the short cut from the railroad station, coming past the big fence that enclosed one particular building of the Swift plant. "I wonder if there's a hole where I could look through," said Mr. Nestor to himself. "Of course I don't believe in spying on what another man is doing, and yet I'm too good a friend of Tom's to want to see him make a fool of himself. He ought to be in the army, or helping Uncle Sam in some way. And yet if he spends all his time on some foolish contraption, like a new kind of traction plow, what good is that? If I could get a glimpse of it, I might drop a friendly hint in his ear." But there were no cracks in the fence, or, if there were, it was too dark to see them, and also too dark to behold anything on the other side of the barrier. So Mr. Nestor, wondering much, kept on his way. It was a day or so after this that Ned Newton paid a visit to the Swift home. Mr. Swift was not in the house, being out in one of the various buildings, Mrs. Baggert said. "Where's Tom?" asked the bond salesman. "Oh, he hasn't come back from Washington yet," answered the housekeeper. "He is making a long stay." "Yes, be went about a week ago on some business. But we expect him back to-day."