“Hello!” said he, in a low tone. “Who’s that?”

A man walked along the river bank, his head bent, his eyes upon the ground. But as the two looked the head lifted and he saw them. He started and stiffened suddenly. Then his hand went up in a salute, and he moved toward them.

It was the German sergeant-major, Kretz.

CHAPTER XV
TELLS HOW AMAZEMENT FILLED THE MIND OF MR. SCANLON

THERE was something in the manner of Kretz as he approached that drew Bat Scanlon’s attention.

“I should say that he was somewhat peevish,” said the big man to Ashton-Kirk. “But why I can’t say.”

Indeed, the face of the German was grimmer than ever; his small grey eyes looked from under their thick, overhanging brows in a way that showed open hostility.

“Hello!” said Scanlon. “Having a little exercise?”

But the man ignored this.

“Who is this?” asked he, and his angry eyes were fixed upon Ashton-Kirk.