"Ha!—humph!" muttered Mr. Carter; "tall, broad-shouldered, hook-nose, brown eyes, brown hair mixed with grey."
The detective put on his hat after making this last memorandum: but he paused before the table, on which the lamp was still standing.
"Was this lamp filled last night?" he asked.
"Yes, sir; it was always fresh filled every day."
"How long does it burn?"
"Ten hours."
"When was it lighted?"
"A little before seven o'clock."
Mr. Carter removed the glass shade, and carried the lamp to the fireplace. He held it up over the grate, and drained the oil.
"It must have been burning till past four this morning," he said.