“Yes. What do you see?”
“I don’t see anything.”
“Yes, you do see something.”
“Ah! of course, a shadow ... two of them.”
“Yes, close to the fence. See, they are moving. Come, quick!”
Quickly they descended the stairs, and reached a room which opened into the garden. Through the glass door they could see the two shadowy forms in the same place.
“It is very strange,” said Sholmes, “but it seems to me I can hear a noise inside the house.”
“Inside the house? Impossible! Everybody is asleep.”
“Well, listen——”
At that moment a low whistle came from the other side of the fence, and they perceived a dim light which appeared to come from the house.