He also continued to sing, throwing his soul into the song, and both work and song proceeded as if no one was near.
He lifted the rails into place with mighty arms, but never ceased to sing.

The boy who helped him seemed almost his equal in strength, but he neither sang nor spoke.

Yet he smiled most of the time, showing rows of exceedingly strong, white teeth.
"They seem to me to be of rather superior type," said Dick.

"Maybe we can get useful information from them." "I judge that the singer will talk about almost everything except what we want to know," said the shrewd and experienced sergeant, "but we can certainly do no harm by speaking to him.

Of course they have seen us.