When we were in Cambridge a couple of weekends ago, we set off on Sunday morning to walk alongside the River Cam from Cambridge to Grantchester. For a time, Grantchester was the home of the poet Rupert Brooke and the subject of his poem about homesickness, "The Old Vicarage, Grantchester". The bright clear November sky burnt almost all the colour from the scene but emphasised the shapes of the leaf-less trees. And was there honey still for tea? I don't know, we went for lunch and to the Green Man pub. There was, however, a very decent ale.