“Think again; any loud noise?”

“I cannot remember any.”

Sir John again paced up and down as if communing with himself.

Was there aught unusual, sir?”

“Yes, I distinctly heard a door shut with a loud clang.”

“May have been the wind.”

“Nay, that would not have startled me; the fact is, the sound was not that of any door about this place; it shut with a clang as of a dungeon door falling into a framework of stone.”

“There is no such door, save in the old oubliettes below the towers; I wish we had Cuthbert in one, and his reverend father in another.”

“No there is none; the fact startled me, and a strange thrill, which I cannot account for, went through me as I heard it.”

Sir John paused, and a visible tremor passed over him, which was strange in a man of his iron constitution.