Professor Nicky Milner is a specialist in Mesolithic archaeology, Head of Archaeology at the University of York. She is director of excavations at Star Carr, the astonishing site in what is now a swathe of Yorkshire farmland, but 10,000 years ago was a teeming wetland environment visited seasonally by groups of hunter-gatherer people for more than 800 years. Among the artefacts preserved in the waterlogged ground are evidence of dwellings, hunting and butchery methods, a rich creative and spiritual life and some of the earliest known carpentry in Europe.