Magic has now returned to England - as has Jonathan, who goes straight to Mr Norrell, requesting his help in breaking the Gentleman's curse. He also sends Sir Walter Pole a letter explaining how his wife was enchanted, with Stephen's help, allowing John Segundus to bring her back to normal life though without Arabella. Meanwhile Norrell and Jonathan summon the Raven King though it is a visit to the Lost Hope ballroom in the fairy kingdom and the intervention of an unexpected ally that brings about the demise of the Gentleman, releasing Arabella, but also determining the fates of the two magicians - Jonathan Strange and Mr Norrell.
—don @ minifie-1