My 19th of Doug's books, and they don't get old. I think this is the first time he's gone into the light-as-particle/wave thing, which as ever came across well.

My particular favourite twist was the memory-loss in chapter 36, and even though yes, I saw many of the turns coming and yes, the layering of intelligence agency upon clever operator was predictable and sure, we've seen plenty of psychopaths .. Doug manages to get across an awe of exciting new potential tech and still tell captivating, engaging stories.

So while I think perhaps the nanotech was a stretch here, almost too futuristic in some ways, surely I could argue the same about telepathy or time travel, which I'm not. It's just another avenue of storytelling, and while it didn't quite have the feel I was expecting, I was still quite hooked from cover to cover and very much enjoyed the book.