"We heard about it and saw him at the hospital today," said Alfred.
"You don't say? So you've been flying with Tom? I'm glad to know that," said Martin, as he nodded his head approvingly.
CHAPTER VII
BOUND FOR VERDUN
For three days more the boys wandered about Paris,—three days of the most fearful suspense; and then began the battle of the Marne. Every airplane in and about Paris was at the front, on the line somewhere, and the boys were deprived of the opportunity to see the new friend they had made at the Bois de Boulogne station.
They were so sure of being able to go to Verdun that Albert wrote to his father of their plans, in the hope that he would consider it wise to leave Switzerland for that point, where they might meet.
The Germans had been defeated; Paris was safe, the French line having held firmly all the way to Verdun. The determination to go there was firmly fixed in their minds, but they could see no way to accomplish the purpose. A visit to Tom at the hospital only resulted in their being told that the lieutenant was in the field, no one knew where.
"I have an idea," said Ralph, as they emerged from their room one morning.