To Say Nothing of the Dog is a time travel story and I think one of my favourite things about this book was how time travel was approached. While it's certainly a big part of the plot, time travel in this book is an academic thing. There's no big bad or great hero risking it all to travel back and change some key point in history, no great lovers torn apart by time, no horrible dystopian future or present in need of fixing. There is, however, a missing cat.

( Very mild spoilers follow )