Jade City, by Fonda Lee

Second paragraph of third chapter:

He resisted. At the age of thirty-five he was supposed to be in the prime of his health and at the peak of his power. It was why his grandfather had finally consented to cede leadership to him, why the rest of No Peak accepted that the mantle had passed from the legendary but old and ailing Kaul Seningtun to his grandson. If word got out that the Pillar of the clan was suffering health problems, it would not reflect well on him. Even something as mundane as insomnia might arouse speculation. Was he mentally unstable? Unable to carry his jade? Being perceived as weak could be fatal.

I didn’t like this as much as I had hoped. It’s basically a story about brutal gang warfare in a world where some people are particularly sensitive to jade, which gives them psychic powers; and yet the technology is jarringly similar to that of our 21st-century world, and to be honest I didn’t care very much for any of the characters or sympathise with what they were trying to do. If you want to try it, it is here.