Debut novel by Millie Bobby Brown reignites debate over ghostwritten celebrity books

Millie Bobby Brown stuns in orange cropped blazer and skirt while promoting her new book in NYC... before rocking cream shorts and white top with fiance Jake Bongiovi

Millie Bobby Brown looks glamorous as she cosies up to her fiancé Jake Bongiovi at the launch of her new book Nineteen Steps in London

Millie Bobby Brown, 19, reveals she'd like to work in a care home because she loves 'the history of older people' and admits she 'never healed' after losing her grandmother to Alzheimer's