He decided that he must risk an advance and he began creeping forward cautiously.

He remembered now what he had forgotten in the first moments of the meeting.

He might yet, even before this sentinel or scout, pass as a Mexican.
He stopped suddenly when he heard a low whistle in front of him.

While it could be heard but a short distance, it was singularly sweet.

It formed the first bars of an old tune, "The World Turned Upside Down," and Ned promptly recognized it.