My world bible for The Hollow Gods is currently 40,000 words long and growing. I spoke to the Waterstones Blog about why I feel helplessly compelled to go into that much detail (short answer: I did my degree in social anthropology). I find my world bible enormously helpful, but anyone else would probably find it unspeakably dull – unless they were exceptionally interested in the marriage rituals of every single made-up culture in my book. However, if you’re interested in a few edited highlights, this is the place to look. I aim to update every couple of weeks.