Marteau, however, had heard discussions during the time he had been on duty in Napoleon's headquarters.
"That will be Sacken's corps, unless I am very much mistaken," he said.
"And those up yonder toward Épernay, where the firing comes from?" asked the grenadier.
Marteau shook his head.
"We must find out," was the answer.
"Yes, but how?"
"I don't know."
"There is only one way," continued Bal-Arrêt.
"And that is?"
"To go over there, and——"