and laughed, and went on with the work of helping to install the motor.
Another reason why some of the Mexicans were of little service was because they were so lazy. They preferred to sit in the shade and smoke innumerable cigarettes, or sleep. Then, too, some of them had to go out after some small game with which that part of the country abounded, for though there was plenty of tinned food, fresh meat was much more appreciated.
But Tom and Ned labored long and hard, and in about a week after making camp they had assembled the dirigible balloon in which they hoped to set out to locate the plain of the ruined temple, and also the entrance to the underground city of gold.
"Well, I'll start making the gas to-morrow." decided Tom, in their tent one night, after a hard day's work. "Then we'll give the balloon a try-out and see how she behaves in this part of the world. The motor is all right, we're sure of that much," for they had given the engine a test several days before.
"Which way are we going to head?" asked Ned.
"North, I think," answered Tom.
"But I thought you said that the temple was west"
