"But the French and German lines look mighty close right there," declared Don. "Isn't there danger of a shell falling short and perhaps striking too near our front?"
"Yes; but we don't expect such a thing to happen," put in the captain, smilingly.
"I'm mighty glad I don't have to give directions for the firing," said Dunstan.
"I think the French can be mighty glad of that, too," came from Don.
He chuckled faintly.
The captain was now giving the range to the telephone operator, who, in his turn, transmitted the order.
"Fire!" commanded the artillery officer.
Just as interestedly as before the ambulanciers waited to see the result of the shot.
The whistle of the projectile had been lost to the ear when a geyser of smoke rose considerably beyond and to the left of the tree.
"That won't do at all," grumbled Captain Langlois.