At the beginning of Act I, Jack drops in unexpectedly on Algernon and announces that he intends to propose to Gwendolen. Algernon confronts him with the cigarette case and forces him to come clean, demanding to know who “Jack” and “Cecily” are. Jack confesses that his name isn’t really Ernest and that Cecily is his ward, a responsibility imposed on him by his adoptive father’s will. Jack also tells Algernon about his fictional brother. Jack says he’s been thinking of killing off this fake brother, since Cecily has been showing too active an interest in him. Without meaning to, Jack describes Cecily in terms that catch Algernon’s attention and make him even more interested in her than he is already.