3/6. Clare Balding rediscovers the stories of Enid Blyton through the landscape of the Isle of Purbeck, a Dorset beauty spot that for over 20 years was Blyton's family holiday destination. Joining her is Enid Blyton 's eldest daughter, Geraldine Baverstock , and Vivienne Endecott who runs a shop for "Blytonophiles". Producer Nicola Humphries