Twelfth Night. The Old Ones gather from across the centuries. The Signs are joined together by a blacksmith with rings of gold and, as the Old Ones bid him farewell, Will is full of anguish as he returns to his own time. Listen on headphones for 3D immersive sound. #TheDarkIsRising

Will Stanton: Noah AlexanderJohn Smith/Paul Stanton/Mr Beaumont: Thomas ArnoldBus Conductor/Jamaican Old One/James Stanton: Danny BaileyStephen Stanton: Simon BubbMrs Stanton/Mrs Pettigrew/Dr Armstrong: Amanda HadingueThe Walker/Hawkin: Toby JonesNarrator: Simon McBurneyThe Rider/Mr Mithothin/Mr Stanton/Farmer Dawson: Tim McMullanMerriman: Paul RhysMaggie Barnes/Mary Stanton: Natasha StoneThe Lady/Miss Greythorne: Harriet WalterHerne: Miles YekinniThe chorister: Vinay SinghRadio announcer: Samuel WestSoundscape design: Gareth FryMusic: Josh SneesbyOriginal songs by Johnny Flynn, Luisa Gerstein and Héloïse Tunstall-BehrensAdapted for audio by Robert Macfarlane and Simon McBurneyDramaturg: James YeatmanDirector: Simon McBurneyProducers: Catherine Bailey and Tim BellA Complicité and Catherine Bailey Production for BBC World ServiceCommissioned by Simon Pitts