Gilbert and Sullivan and institutions more freely by clothing them in superficial Japanese trappings. Gilbert wrote, "The Mikado of the opera was an imaginary monarch of a remote period and cannot by any exercise of ingenuity be taken to be a slap on an existing institution." G. K. Chesterton compared it to Jonathan Swift's "Gulliver's Travels": "Gilbert pursued and persecuted the evils of modern England till they had literally not a leg to stand on, exactly as Swift did... I doubt if there is a single joke in the whole play that fits the Japanese. But all the jokes in the play fit
Gilbert and Sullivan up in a risky intrigue at the Tower of London during the 16th century. The dialogue, though in prose, is quasi-early modern English in style, and there is no satire of British institutions. For some of the plot elements, Gilbert had reached back to his 1875 tragedy, "Broken Hearts". "The Times" praised the libretto: "It should... be acknowledged that Mr. Gilbert has earnestly endeavoured to leave familiar grooves and rise to higher things." Although not a grand opera, the new libretto provided Sullivan with the opportunity to write his most ambitious score to date. The critics, who had recently lauded