The document describes The Chatsfield, which began as a fictional 8-book series and expanded into an immersive storyworld told across multiple platforms. Visitors can check into the story's flagship London hotel online, where they can interact with characters through email and social media to uncover stories and mysteries. The main character Jessie Loe receives emails that provide glimpses into her life and relationships, and visitors can choose to experience the story through books, video diaries, conversations or exploring clues across different mediums. The development process involved mapping hundreds of pieces of content and storylines across the website, emails and video episodes.