Small Gods is the thirteenth of Terry Pratchett's Discworld novels. It tells the origin of the god Om, and his relations with his prophet, the reformer Brutha. In the process, it satirises religious institutions, people, and practices, and the role of religion in political life. The Great God Om tries to manifest himself once more in the world, as the time of his eighth prophet is nigh. He is surprised, however, when he finds himself in the body of a tortoise, stripped of his divine powers.