Bella-Jay Dark (5), with her mum Chelsie, at their home in Weymouth, Dorset. 20th February 2022. A British girl has become the world's youngest author after having her first book published - aged FIVE. See SWNS story SWBRbook. Bella-Jay Dark stunned family last year when she told them she was going to write a book. Parents professional chef Chelsie Syme, 27 and plasterer Myles, 30, thought it was ‘one of those things’ children say. But it has become a real title that has been officially published. Ginger Fyre Press have produced the book, which is now available to purchase on Amazon and Waterstones for £4. Bella-Jay's story, titled The Lost Cat, features a feline who goes on adventures and soon learns an important lesson. Last year Abhijita Gupta was hailed as the world's youngest published author - aged seven.