The Angry Soul (NWN)

In the early days of exploration within the jungles of Chult, a Calimsham expedition clashed with a small tribe after removing artifacts from a burial site. A local shaman named Gol'Kai killed a noble while trying to retrieve the sacred items, and the "civilized" invaders retaliated. The tribe did not survive. Weapons such as this were found in nearby villages soon after, accompanied by a silent apparition of Gol'Kai, voiceless as his people.