ear:

"You've seen him before. It's the man we saw in the bushes up there by
the Elmvale Dam the other day. Remember, Al?"

"Gee! Yes!" breathed Torry.

"They told me his name was Blake. He doesn't look it," said Whistler
earnestly. "He looks more like a German than Hansie Hertig--and that's
enough!"

"Aw----"

"Of course, he can't help that," agreed Whistler before Torrance could
voice objection. "But he is a stranger in Elmvale. He works at the
munition factory. You'd think of course they'd be careful who they
employ. But he wouldn't be the first alien that has been employed in
such a factory."

"What are you driving at, Phil?" demanded his chum, much puzzled now.

"I found something up there near the dam that I didn't tell you fellows
about. And it is something that I think that man's interested in. Now,
what's he out here for?"

"For a sail."

"In that old tub that is full of oil casks and the like?"

"Whistler Morgan!" breathed Torry in amazement, "how do you know at this