He and the lieutenant held a consultation, studying the map, and having come to a decision the gunners to the rear were presently informed of the necessary readjustments in the range.
A second shot went astray; so did a third. But each was just a little nearer the mark. The fourth struck to the right, but so close that the smoke floated in front of the solitary tree and partially obscured its form.
"As you see, mes Americaines, it is only a question of time when we get what we wish," commented Lieutenant D'Arraing.
"I reckon the Germans learned that long ago," said Don.
The fifth shot proved the artillery officer's confidence to be based upon good reasons; for when the smoke of the shell-burst began to clear away the powerful field-glasses revealed the fact that a considerable portion of a snake-like line of sand-bags running across the slope had completely disappeared.
"Which means, of course, a very disastrous occurrence—from their point of view!" exclaimed Dunstan, with a long breath.
"I don't like to think about it," declared Don.
The ambulanciers, not wishing to trespass too much upon the kindness and courtesy of the French officers, soon decided that it was time for them to leave. Accordingly, they expressed their warm thanks and appreciation of the opportunity which had been afforded them.
Very politely, both the captain and lieutenant declared that it had given them pleasure to extend the privilege.
"Now, cher amis, what are you going to do?" asked the lieutenant.