"The fellow ahead," said Whistler Morgan deeply in earnest, "is that man
Blake. The other I bet is the captain of the _Sarah Coville_."

"Well," asked Torry, after a moment, "what are you waiting for? Their
eating at Yancey's won't stop us from going there too, will it?"




CHAPTER VIII

PUZZLED


Whistler Morgan's three chums had by this time become somewhat
interested in the bearded man, who called himself Blake and who worked
in the laboratory of the Elmvale munition factory.

They were not at all as sure as Whistler seemed to be that the man was
an alien enemy, and dangerous; for one reason they did not know all that
Whistler had discovered up by the dam. It was only to Ensign MacMasters
that their leader had told of the water wheel under the rock.

Frenchy began to grin when he saw how Whistler hesitated about entering
the restaurant in Rivermouth.

"What's the matter? You so mad with that fellow that you won't eat at
Yancey's because he does?" he asked.

"I'd like to get in there," said Whistler, "without attracting his