"What is that?" I asked.

"We must not forget the tragic end of two young American officers whom we knew, Lieutenant Robert Chester, of Pennsylvania, and Lieutenant Philip Marcel, of South Carolina."

"Ah! their fate was sad, very sad," I said.

Marcel put his face in his hands and appeared to weep.

"They departed this life very suddenly," he said, "about ten o'clock of a fine morning, on the 8th of May, 1778, in his Britannic Majesty's province of Pennsylvania, about fifteen miles east of his most loyal city of Philadelphia. The witnesses of their sudden and sorrowful demise were Sergeant Pritchard, four privates in the rebel service, and two young British officers who had just been captured by the aforesaid rebels. But such, alas, are the chances of war; we must even weep their fate, for they were so young and so ingenuous! Lieutenant Melville, will you weep with me?"

We bowed our heads and wept.

"Suppose the English officers should ask us about England and our homes and kin?" I said to Marcel. "How could we answer them without at once convicting ourselves?"

"That will be easy enough," replied Marcel, gayly. "We have brains, haven't we? And if any impertinent fellow becomes too inquisitive we can do as the Connecticut man does: we can answer a question with a question of our own. Besides, there is plenty of information in these letters that we have captured, and we can study them."

We were now approaching the British lines, but were still in a region that might be called doubtful ground, since parties from either army scouted and foraged over it.

I suggested that we halt in the shade of a convenient grove and examine the letters again with minute care, rehearsing them in order that we might be perfectly familiar with their contents. This we did, and then each tested the knowledge of the other, like a pedagogue questioning his pupil.