Why did a sort of thrill run through him?
Because the aviator's son felt reasonably sure that he looked upon a portion of that famous area between the lines. The proof was this: On the slopes of the hill which hemmed it in the powerful glass brought into view a faint, irregular row of whitish objects, a wall of sand-bags crowning the German trenches.
In rapt silence, Don gazed upon the distant landscape. How strangely serene and beautiful it appeared in the silvery light of the moon! And just as he was about to utter some of the thoughts which the poetic scene evoked in his mind, he gave a slight start, lowered the glass and faced Dunstan Farrington.
"What was that?" Don exclaimed.
"What was what?" demanded the other.
"Didn't you hear a noise?"
"No."
"Where?" asked Chase, interestedly.
"Down below—in the château itself."
"In the château itself!" repeated Manning. A suspicious note crept into his voice. "You're joking, son!"