"All right, old man," laughed the boy; "but no funny business," and he broke off a twig and shook it at Ambrosio. "You see this."

Now that the two companies had united, they broke away from the railroad and made a bee line toward Vera Cruz, arriving in sight of the city at daybreak.

"Here's where we part company with the troopers," explained Donald. "We six and Ambrosio will ride into town together and the boys will come in as they wish. There must be no suggestion of a military expedition."

"I see," said Mr. Black, "and I want to thank you all for your kindness to my daughter and to me. That is about all I can do now. Perhaps some day I can do more."

"That's enough," muttered the old trooper, "unless you can get us all sent back home. I can't see any use of keeping us here."

"That's all right, old man," laughed the corporal. "You know you would not go home if you could."

"Better not give me a chance," was the grumbling reply, as the trooper bit off a big piece of tobacco and tucked it away in his cheek.

Reveille was just sounding when the boys, accompanied by their three friends and Ambrosio, perched upon Billie's horse, drew up in front of Lieut. Grant's quarters. They had been recognized and passed through the lines, and as the men caught sight of them they were given a hearty cheer.

"You seem to have made friends," laughed the lieutenant as he greeted them, "and there is every reason why you should. The general will be glad to see you and hear your report. I have no doubt you have a good story to tell, and he likes a good story."

When the boys reached home they found the gate still locked, although it was now considerably past the time when the household was astir. Their knock was answered by the portero, who, in response to a question by Billie, said that Santiago was seriously ill and had been for thirty-six hours.