Chronicles of the Tiger Immortal

(Currently writing it as main story.) A spirit from another time, another place, arrives and sees a boy drown to death. The vessel is empty and the soul is gone. The spirit takes over the body and begins life anew. In a world of saints, mages, and immortals; one spirit rejoices as it has attained another life. With a new body, the spirit sets out into the world of the living once more to become an immortal and take back what was stolen from it. It all starts when he swallows a gold pearl with the image of a white tiger inside. Book 1: Advent of Lu Shu. Chapters: 18 total. Book 2: The Old Gods. Chapters: 21 total. Book 3: The Tiger Army. Chapters: Ongoing from 1-?