"But indeed, Dorothy."
He got a thump in the ribs.
"Stop it! And answer me," she snapped. "You're sure that d'Estreicher's is the last bedroom in the left-hand passage."
"Certain. As you told me to, I questioned the servants without seeming to do so, after dinner last night."
"And you dropped the powder I gave you into his cup of coffee?"
"Yes."
"Then he's sleeping like a log; and we can go straight to him. Not another word!"
On their way they stopped at a door. It was the dressing-room adjoining the boudoir of the Countess. Saint-Quentin set his ladder against it and climbed through the transom.
Three minutes later he came back.
"Did you find the card-board box?" Dorothy asked.