Jade war

"In Jade War, the sequel to the Nebula, Locus, and World Fantasy Award-nominated Jade City, the Kaul siblings battle rival clans for honor and control over an Asia-inspired fantasy metropolis. On the island of Kekon, the Kaul family is locked in a violent feud for control of the capital city and the supply of magical jade that endows trained Green Bone warriors with supernatural powers they alone have possessed for hundreds of years. Beyond Kekon...