“Now tell me this,” continued Wyatt. “Was the sitting-room window shut when we went to bed?”

“Yes: I’m sure of that,” said Dick, “because I went and looked out, and longed to leave it open.”

“You shut it?”

“You saw me do it when we came to bed.”

“I did. Well, I found it wide open.”

“Ah!” cried Dick excitedly, “then it was not a dream. You saw it all in your sleep. He came in at your window and went out by the sitting-room, and the tulwar has gone.”

“No,” said Wyatt slowly: “the tulwar hangs where we put it, quite safe. I thought that, and went to see before I woke you.”

“How strange! Then it must have been a dream after all. One minute. Is there any explanation of it? Could it have been the servants?”

“No; they are both fast asleep.”

“Then what can it mean?” said Dick.