Henry's hedonistic influence, Dorian fully explores his sensuality. He discovers the actress Sibyl Vane, who performs Shakespeare plays in a dingy, working-class theatre. Dorian approaches and courts her, and soon proposes marriage. The enamoured Sibyl calls him "Prince Charming", and swoons with the happiness of being loved, but her protective brother, James, warns that if "Prince Charming" harms her, he will murder him. Dorian invites Basil and Lord Henry to see Sibyl perform in Romeo and Juliet. Sibyl, too enamoured with Dorian to act, performs poorly, which makes both Basil and Lord Henry think Dorian has fallen in love with Sibyl because of her beauty instead of her acting talent. Embarrassed, Dorian rejects Sibyl, telling her that acting was her beauty; without that, she no longer interests him. On returning home, Dorian notices that the portrait has changed; his wish has come true, and the man in the portrait bears a subtle sneer of cruelty. Conscience-stricken and lonely, Dorian decides to reconcile with Sibyl, but he is too late, as Lord Henry informs him that Sibyl has killed herself. Dorian then understands that, where his life is headed, lust and beauty shall suffice. Dorian locks the portrait up, and over the following eighteen years, he experiments with every vice, influenced by a morally poisonous French novel that Lord Henry Wotton gave him. One night, before leaving for Paris, Basil goes to Dorian's house to ask him about rumours of his self-indulgent sensualism. Dorian does not deny his debauchery, and takes Basil to see the portrait. The portrait has become so hideous that Basil is only able to identify it as his by the signature he affixes to all of his portraits. Basil is horrified, and beseeches Dorian to pray for salvation. In anger, Dorian blames his fate on Basil and stabs him to death. Dorian then calmly blackmails an old friend, the scientist Alan Campbell, into using his knowledge of chemistry to destroy the body of Basil Hallward. Alan later kills himself. To escape the guilt of his crime, Dorian goes to an opium den, where, unbeknownst to Dorian, James Vane is present. James had been seeking vengeance upon Dorian ever since Sibyl killed herself, but had no leads to pursue as the only thing he knew about Dorian was the name Sibyl called him, "Prince Charming". In the opium den, however, he hears someone refer to Dorian as "Prince