From the introduction: The history of The Atua begins with the Titans Rangi, an Avatar of Ehekatoyaatl, and Papa, an Avatar of Terra. These two Titans loved each other and gave birth to six gods, Tangaroa, Täne, Tu, Tawhirimatea, Rongo, and Haumia-Tiketike. Shortly thereafter, Rangi and Papa learned how to merge their Legend and become one. They left their Greater Titan parents, neither of which would accept them, and merged with Po, the Greater Titan of Night, casting both sky and earth into the darkness of night.