"Well," explained Russ, "you dig a sort of hole and you pile the sand up in front of you in a sort of half ring and then you can lie down behind it and if anybody throws bullets at you they won't hit you."
"Do you have a roof to your fort?"
"No! Course forts don't ever have a roof."
"Then you get wet when it rains."
"Yes, but a soldier doesn't ever mind rain. All he minds is bullets, and they can't hit him in the fort."
"Supposin' they come over the top where there isn't a roof?"
"I don't guess they'll come that way," said Russ. "Anyhow, you mustn't throw any that way."
"Oh! am I going to throw the bullets?"
"Yes," Russ replied, "We'll take turns being in the fort. After we get it made I'll be captain of it and you must come up and try to take it away. You must shoot bullets at me."
"Real ones?"