Stage 8 in the Oxford Reading Tree series marks an important milestone where children transition from simple texts to more complex narratives. At this level, readers are typically 6–7 years old (Year 3 in UK schooling or equivalent), and are developing fluency, inference skills, and greater reading independence

In A Day in London, Biff, Chip, Kipper, and their friend Wilf take a trip to London with Wilf’s dad. While sightseeing, the Magic Key begins to glow, transporting the children back in time to the Great Fire of London in 1666. Caught in the middle of a historical disaster, they witness how the fire spreads, see how people respond, and help a boy rescue his grandmother. The story combines exciting time-travel adventure with educational content, introducing readers to key historical events and emphasizing themes like courage, quick thinking, and teamwork. Designed for developing readers, the book offers accessible language, vivid illustrations, and a meaningful blend of fiction and fact.