At this point I decided that cycling was fun and that I'd carry on: Helion Bumpstead (because how could you not, with a name like that), Great Sampford, Thaxted. Thaxted turns out to have a working windmill and an enormous church; during the 14th and 15th century it was the heart of British cutlery manufacture and grew rich appropriately. Then to Stansted Mountfitchet for a train back to Cambridge. The ride's here.
But I had arranged a party this evening, at which I had promised cheese; and there are two trains an hour from Stansted Mountfitchet, the cheese shop in Cambridge closes at five, and I had no chance of making the 1548 train which might take me back in time for that.
While my forebrain was composing apologies, some portion of my hind-brain pointed out that any place with a name as posh as Stansted Mountfitchet will have a deli. And indeed it did; while waiting for the train I bought cheeses from three species, two sorts of biscuit and most of the olives.
70k on a bike (counting the bit back from the station) makes fivemack tired.