{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/b5fe8d16-7518-4208-861b-e1ec5ce88192/61ae1b5eaf1a4200134c59cc?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Little Atoms 728 - Tom Chivers' London Clay","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/60ed7797f1734ba0e93d0e59/1638800114634-40bb87d8850f912943344c29b2ba83b5.jpeg?height=200","description":"<p>Tom Chivers joins Neil to talk about walking the historical strata of London and it's hidden rivers, in his new book London Clay.</p>","author_name":"Neil Denny"}