"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."

But Achille moved the bowl, lifted the clock, bent down to the grate, in
vain: the letter was not there.

"Oh blast it, blast it!" he muttered. "She's done it... she's taken
it... And then, when she had the letter, she cleared out... Oh, the
slut!..."

Lupin said:

"You're mad! There's no way through between the two rooms."