replied Billie, “but we did have quite an exciting time.”

“Of course you found Villa,” said the captain.

“Found him and lost him,” replied Adrian, and he proceeded to narrate their adventure.

“And you have no idea who fired the shot?”

“Not the slightest.”

“I’m sure Villa was not the victim,” continued Capt. Peak, “or we should have heard of it by this time. They would have been over here looking for the murderer.”

“Which might have made a lot of trouble for us,” said Donald.

“Exactly! But if you boys want something to help pass away the time for a couple of hours, get your horses and we’ll ride down the river and see if we can hear anything.”

The boys gladly accepted the invitation and a few minutes later were riding leisurely along the bank of the Rio Grande on what the captain called a tour of inspection.

“Sort of scout duty,” laughed Adrian.