So anxious was Tom to get started, that he put in several nights working on the glider. Ned occasionally came over to help him, while Mr. Damon was on hand as often as his wife would allow him. Mr. Petrofsky spent his nights writing to friends in Russia, hoping to get some clew as to the whereabouts of his brother.
It was on one of these nights, when Tom and Ned were laboring hard, with Eradicate to help them, that an incident occurred which worried them all not a little. Tom was adjusting some of the new weights on the sliding rods, and called to Ned:
"I say, old man, hand me that big monkey wrench, will you. I can't loosen this nut with the small one. You'll find it on the bench by that back window."
As Ned went to get the tool he looked from the casement. He started, stood staring through the glass for a moment into the outer darkness, and then cried out:
"Tom, we're being watched! There are some spies outside!"
"What?" exclaimed the young inventor "Where are they? Who are they?"
"I don't know. Those Russian police, maybe. Out front, and maybe we can catch them!"
Grabbing up the big monkey wrench, Ned
