This is an enjoyable time-travel science fiction novel, mainly set in the 1300s in Languedoc. It's about a scientific mission, but there's more academic politicking than science - which suits me fine, because in so far as there is any real time-travel science I don't have a hope of understanding it. I can relate to office politics, and to medieval studies - and it does both of these rather well. Lots of humour and nice descriptions of both the scientists and the villagers, and quite a lot of thought about how travellers from the future would appear to medieval villagers. A very Australian book, especially in the language - I wonder whether the author did this deliberately or unthinkingly. Anyway, that made it more enjoyable for me.