“This took place late at night?”

“Quite late, long after everyone had retired.”

She paused, staring at me with a sort of embarrassment, and presently:

“Were the footsteps those of a man or a woman?” I asked.

“Of a woman. Someone, Mr. Knox,” she bent forward, and that look of fear began to creep into her eyes again, “with whose footsteps I was quite unfamiliar.”

“You mean a stranger to the house?”

“Yes. Oh, it was uncanny.” She shuddered. “The first time I heard it I had been lying awake listening. I was nervous. Madame de Stämer had told me that morning that the Colonel had seen someone lurking about the lawns on the previous night. Then, as I lay awake listening for the slightest sound, I suddenly detected these footsteps; and they paused—right outside my door.”

“Good heavens!” I exclaimed. “What did you do?”

“Frankly, I was too frightened to do anything. I just lay still with my heart beating horribly, and presently they passed on, and I heard them no more.”

“Was your door locked?”