 Gilbert also continued to supervise the various revivals of his works by the D'Oyly Carte Opera Company, including its London Repertory seasons in 1906–09.His last play, "[[The Hooligan]]", produced just four months before his death, is a study of a young condemned thug in a prison cell.Gilbert shows sympathy for his protagonist, the son of a thief who, brought up among thieves, kills his girlfriend.