It has been undone and retied.

The papers have been put back in a different order." The Duke was without doubt agitated.

He rose from his chair and paced the room restlessly.
"You are sure of what you say, Ducaine ?" he demanded, turning, and facing me suddenly.
"Absolutely sure, your Grace," I answered.
He turned away from me.
"In my own house, under my own roof," I heard him mutter.

"Good God!" I had scarcely believed him capable of so much feeling.

When he resumed his seat and former attitude I could see that his face was almost gray.
"This is terrible news," he said.