"But if your admiral fires on Tampico, Carranza will help Gen. Huerta," declared Pedro.

"Do you really think so?" asked Adrian.

"I know it. We may have our little family troubles down here in Mexico, but if the United States should interfere, we'd all turn in and fight her."

Billie was about to reply when Gen. Sanchez entered the room.

"I see you have been reading the news," he said calmly.

"And discussing it too," said Donald.

"Which we had better not at present," replied the General. "You boys are our guests and as long as you are, you are our friends; but I am afraid there is serious trouble coming and I think it will be much better if you make arrangements at once to return to the United States. As you know, I am not a favorite with the present administration and I might not be able to protect you."

"We can ask the protection of the American Ambassador," said Donald.

Gen. Sanchez smiled kindly.

"The American Ambassador may be asked to leave."