A summer holiday and an old folk tale bring two 11-year-olds together as they set out to explore just what, or who, is calling to them, from deep within an abandoned tin mine.

Cast:Flora Hylton, Joel Sefton-longi, Skyer Dennett, Josie Walker, Nichola Burley, Steffan Rhodri,

Genre:Drama, Thriller,

country:United Kingdom,

Production:Dorothy St Pictures, BBC Film, BFI,