CHAPTER VI.
A BLOW IN THE DARK.
Was Hamington's explanation the correct one?
"By Jove! I believe that's the straight of it!" exclaimed Hardwick.
"So do I," said Mr. Allen. "It is the only way to account for the marks on the window-frame and the sash."
Mr. Sumner said nothing. Indeed, to tell the truth, his loss had set his mind in a whirl.
Parker turned to Hal.
"Did you open the office this morning?" he asked.
"Yes, sir."
"You opened the window when you cleaned up?"