“Any letters?”

“Yes, one letter by the last post.”

“Where is it?”

“I put it on your mantel-piece, governor, as usual.”

Lupin’s bedroom was next to the drawing-room, but Lupin had permanently bolted the door between the two. He, therefore, had to go through the hall again.

Lupin switched on the electric light and, the next moment, said:

“I don’t see it....”

“Yes.... I put it next to the flower-bowl.”

“There’s nothing here at all.”

“You must be looking in the wrong place, governor.”