Page:Tom Swift in the Caves of Ice.djvu/57

Rh inside surface on the outside, the ink couldn't have gotten on. Besides, Andy always carries his fountain pen in his upper vest pocket, and that pocket is too small to hold the map. No, I'm almost positive that Andy or his father have sneakingly made a copy of this map!"

"I'm sorry to have to admit that Mr. Foger is capable of such an act," spoke Mr. Swift, "but I believe it is true."

"And here is another thing," went on the young inventor, who was now closely scanning the parchment through a powerful magnifying glass, "do you see those tiny holes here and there, Mr. Jackson?"

"Yes," answered the engineer.

"Were they there before, Abe?" went on Tom, calling the old miner's attention to them.

"Nary a one, was the answer. "it looks as if some one had been sticking pins in th' map."

"Not pins," said Tom "but the sharp points of a pair of dividers, or compasses, for measuring distances. Andy, or whoever made a copy of the map, used the dividers to take off distances with. This clinches it, in my mind."

"But what can you do?" asked Tom's father.

"I don't know," answered the young inventor. "It would be of little use to go to Andy. Naturally he would deny having made a copy of the