"Chief, you astound me! How calm and careless you look!"
"I am calm and careless, Alexandre."
"But what do you mean? Doesn't the case interest you? Don't you intend to avenge Mme. Fauville and Sauverand? You are openly accused and you sit here blowing soap-bubbles!"
"There's no more delightful pastime, Alexandre."
"Shall I tell you what I think, Chief? You've discovered the solution of the mystery!"
"Perhaps I have, Alexandre, and perhaps I haven't."
Nothing seemed to excite Don Luis. Hours and hours passed; and he did not stir from his balcony. The sparrows now came and ate the crumbs which he threw to them. It really seemed as if the case was coming to an end for him and as if everything was turning out perfectly.
But, on the day of the meeting, Mazeroux entered with a letter in his hand and a scared look on his face.
"This is for you, Chief. It was addressed to me, but with an envelope inside it in your name. How do you explain that?"
"Quite easily, Alexandre. The enemy is aware of our cordial relations; and, as he does not know where I am staying"
"What enemy?"
"I'll tell you to-morrow evening."
Don Luis opened the envelope and read the following words, written in red ink:
"There's still time, Lupin. Retire from the contest. If not, it means your death, too. When you think that your object is attained, when your hand is raised against me and
