He went away.
Pierre Leduc, taken aback and upset, went back to the castle. On his way, he saw a piece of blue paper on the edge of the lawn. He picked it up. It was a telegram, not crumpled, like a piece of paper that had been thrown away, but carefully folded: obviously lost.
It was addressed to "Beauny," the name by which Lupin was known at Bruggen. And it contained these words:
"We know the whole truth. Revelations impossible by letter. Will take train to-night. Meet me eight o'clock to-morrow morning Bruggen station."
"Excellent!" said Lupin, who was watching Pierre Leduc's movements from a neighboring coppice. "Excellent! In two minutes from now, the young idiot will have shown Dolores the telegram and told her all my fears. They will talk about it all day. And 'the other one' will hear, 'the other one' will know, because he knows everything, because he lives in Dolores' own shadow and because Dolores is like a fascinated prey in his hands. . . . And, to-night. . . ."
He walked away humming to himself:
"To-night . . . to-night . . . we shall dance. . . . Such a waltz, my boys! The waltz of blood, to the tune of the little nickel-plated dagger! . . . We shall have some fun, at last! . . ."
He reached the chalet, called to Octave, went to his room, flung himself on his bed, and said to the chauffeur:
"Sit down in that chair, Octave, and keep awake. Your master is going to take forty winks. Watch over him, you faithful servant."
He had a good sleep.