The underground is a curious place. In stories, in fictitious tales, darkness is often a place to hide. To feel the fear running up your back and prickling along the nape of your neck.
I would be lying if I were to say the darkness facing our adventurers didn't evoke this. It did. But just because it did doesn't mean it had to. The dark caves and dripping corners of the world are not only places of sanctuary, but of peace. Respite.
Don't judge the darkness for what you see between the pages of this book. It has more to offer than it lets on.