Connie Willis is brilliant, and in this novel set she revisits her favourite continuum (Oxford time travel: see also, The Doomsday Book, Fire Watch, and To Say Nothing of the Dog) and my favourite of her themes (chaos theory). In Blackout and All Clear, three historians go through to various points of early World War 2: one to an manor housing evacuees, one to observe the Blitz, and one to observe the Dunkirk evacuation. They are under strict instructions not to put themselves into danger, and not to do anything that could alter history. Of course, they inadvertently do (or think they do) – you can’t introduce an element into a closed system and not affect it – and fear that the timeline is trying to correct itself when their access back to 2060 gets blocked off.
Of course, now they’re all in approximately the same position as the “contemps”. They may know the details that the original timeline had, but they don’t know what, if anything, has changed, and they don’t know if anyone can or will rescue them. The parallels of terrifying, imminent danger are very well-done.
Another thing that Connie Willis does extraordinarily well is weaving in phrases and motifs so subtly that you don’t notice them until you realise their importance. She gives minor characters or overheard conversations phrases that are totally appropriate to the scene and the setting, but piled all together make a great running theme, and reassurance for the reader. Of course, that does lead to the only minor query that I have. Agatha Christie is a bit of a motif (referenced at least three times, in different ways), but would the British consistently have referred to Murder on the Orient Express as Murder in the Calais Coach? (Wikipedia has Calais as its American title.) I trust Connie Willis’s research, but I spent a couple of minutes trying to work out which mystery people were referring to, and was very taken aback when the title was revealed as Calais. It’s also kind of pivotal at one point, in a way that Orient Express wouldn’t have been.
My favourite theme, though, is chaos theory – something that she’s worked with before in both the Oxford series and Bellwether (which I think is my favourite Connie Willis novel). Non-linear, non-obvious cause and effect, fractals (not mentioned here, but part of the math of chaos) and the obscure consequences of something like wrapping a parcel (classically referred to as the butterfly effect) are things that fascinate me and have for years. Tracing the connections between seemingly random events is impossible except in hindsight – there are simply too many variables to keep track of, all interacting – but she weaves them together so well that the conclusions are inevitable math of chaos) and the obscure consequences of something like wrapping a parcel (classically referred to as the butterfly effect) are things that fascinate me and have for years. Tracing the connections between seemingly random events is impossible except in hindsight – there are simply too many variables to keep track of, all interacting – but she weaves them together so well that the conclusions are inevitable.Bellwether does the same kind of thing: establishing all the seemingly random events is overwhelming and the (realistic) half-sentences and interruptions are frustrating, but the clarity when chaos resolves into order is absolutely worth it.
I don’t think I would recomment this as a starting point for Connie Willis, though. The Oxford continuum’s history anand time travel laws are already well-established when this book starts, so there’s not a lot for a novice to grab on to. Start with either The Doomsday Book or To Say Nothing of the Dog, but then devour these two.