Leone has been poisoned by the "secret poison" of night souls, and he will not live long. Leone's only heir is his son, who does not deserve to inherit his father's fortune. Leblanc asks how old his son is, and Leone replies that he is an adult now, and that he wants to adopt him. He tells Leblanc that he owes him so much that he will pay him back with all his life. He says that he can go to sleep thinking about Leblanc all the time, but that he cannot sleep thinking of Leblanc because he feels "irritating" and "insensitive" to him