The Duchess of Cambridge has been retracing her grandmother's footsteps during a visit to Bletchley Park near Milton Keynes.
She was there to mark the completion of an £8m, year-long restoration project to create a visitor centre and new exhibitions.
The Duchess's grandmother, Valerie Glassborow, worked alongside the codebreakers in the 1940s.
Matthew Hudson's report contains flash photography.
More top news
A warm start with mist and fog in places. Brighter and even warmer throughout the afternoon.
Britain has seen its driest first half of September since before the 1960s and it's also been rather warm.
Low cloud will once again spread across the region. Mist and fog reforming