Just finished reading the novelization (written by Edgar Jepson) of the play "Arsene Lupin", which was initially written by Francis de Croisset. This novelization makes an interesting alternative introduction to the original one "Arsene Lupin, Gentleman Burglar" from the cannon. It also offers an interestingly alternative "ending"! Though it had some weird moments (such as the brilliant Guerchard missing some very obvious deductions which wouldn't take a genius to solve), it did have many thrilling moments of its own, and also was a bomb of quite fascinating dialogues (it was based on the play, after all)! It portrays quite well of Lupin's own professionalism with such power that even the police officers would find themselves crapping bricks when confronting him.
In any case, here's one dialogue I very much loved, taking place at Guerchard's confrontation with Lupin, who promised to steal the coronet by midnight. Guerchard held the gun at Lupin, but the time was running out and Guerchard feared, knowing that the man he faced was capable of anything.
Arsene Lupin: "As the hand of that clock moves nearer and nearer midnight, you will grow more and more terrified. Your nerves are on edge!"
Detective Guerchard: "Joker!"
Arsene Lupin: "Oh, you're as brave as the next man. But who can stand the anguish of the unknown thing which is bound to happen? ... I'm right. You feel it, you're sure of it. At the end of these few fixed minutes an inevitable, fated event must happen. Don't shrug your shoulders, man; you're green with fear."
Guerchard: "My men are outside ... I'm armed..."
Arsene Lupin: (in a deep, thrilling voice) "Child! Bear in mind ... bear in mind that it is always when you have foreseen everything, arranged everything, made every combination ... bear in mind that it is always then that some accident dashes your whole structure to the ground. Remember that it is always at the very moment at which you are going to triumph that he beats you, that he only lets you reach the top of the ladder to throw you more easily to the ground."