The cavalcade moved forward for several miles. It was getting hot and horses and men began to suffer. It was a relief when a small stream was reached, where every one could get a refreshing drink. After a short rest the command to move forward was given.
“What is that?” cried Jerry, suddenly, pointing ahead to where, on a broad, level stretch of country, several small, dark, moving objects could be seen.
“I will tell you directly,” said the professor, taking a pair of field-glasses from their case. He leveled the binoculars and gazed steadily through them.
“It is Vasco and his party!” he cried. “I can see Noddy in his auto, and there are a number of horsemen. They have not yet reached the cave. Quick, Jerry, run the machine ahead and tell the captain!”
Jerry increased the speed of the auto. It ran up beside the trooper captain, who turned about to see what was up.
“There are the brigands!” exclaimed the professor, pointing ahead. “Hurry up and you can catch them before they get to the cave, where they may barricade themselves.”
“My compliments, señor; I thank you for the information,” replied the captain, bowing low. “Will you not smoke a cigarette with me?”
“I don’t smoke!” snapped the professor. “Besides, we have no time for that now. We must fight!”
“Exactly, just so,” answered the easy-going Mexican. “Come, men!” he exclaimed. “The enemy is in front of you! At them, and show what stuff you are made of! Bugler, sound the charge!”
Instantly the troops were full of excitement. Men began unslinging their carbines. They got out their ammunition and seemed eager for the fray. The bugler blew a merry blast.