"What is the matter?" he asked.

"The hand," Beatrice gasped. "A man's hand came through that hole in the glass door. He was trying to pass a loop of string over the latch. The light was falling fully on the door and I saw the hand distinctly."

"Some rascally tramp, I suppose," Flower growled.

"I don't think so," Beatrice said. "I am sure the man, whoever he was, was not an Englishman. The hand might have been that of a Hindoo or Chinaman, for it was yellow and shrivelled, like a monkey's paw."

Something like an oath crossed Flower's lips. His set face altered swiftly. Though alarmed and terrified, Beatrice did not fail to note the look of what was almost fear in the eyes of her uncle.

"What is the matter?" she said. "Have I said or done anything wrong?"

But Flower was waiting to hear no more. He dashed across the floor and threw the door open. Beatrice could hear his footsteps as he raced down the terrace. Then she seemed to hear voices in angry altercation, and presently there was a sound of breaking glass and the fall of a heavy body. It required all Beatrice's courage to enable her to go to the rescue, but she did not hesitate. She ran swiftly down the corridor, when, to her profound relief, she saw Flower coming back.

"Did you see him?" she exclaimed.

"I saw nothing," Flower panted. He spoke jerkily, as if he had just been undergoing a physical struggle. "I am certain no one was there. I slipped on the pavement and crashed into one of those glass screens of yours. I think I have cut my hand badly. Look!"

As coolly as if nothing had happened Flower held up his right hand from which the blood was dripping freely. It was a nasty gash, as Beatrice could tell at a glance.