Caroline listening to Block D. Photograph by Rachael Marshall.
A rather vocal pigeon was skittering along some trunking near the ceiling, its calls echoing around the room and occasionally being answered by another bird.
Tuesday at Bletchley Park was blessed with bright sunshine and lots of visitors. Have you visited yet? Did you know that the Alan Turing exhibition is on the shortlist for an Art Fund Award? Cast your vote and see the other nominations here: Art Fund Prize.