Earth’s Regency era – a time of culture, extravagance, sumptuous balls… and aliens?While Ruby is a popular new addition to the Duchess of Pemberton’s ball, the Doctor’s world is about to be forever rocked by a dashing visitor from space.With many party-guests facing an identity crisis like no other, it is up to the Doctor and Ruby to stop the menacing Chuldurs’ plot. Doctor Who presents a classic tale with an alien twist in a thrilling novelisation from the episode’s scriptwriters, Kate Herron and Briony Redman.Featuring Ncuti Gatwa as the Fifteenth Doctor and Millie Gibson as Ruby Sunday.