18:2.1

Each of the billion worlds of Havona is directed by a Supreme Trinity Personality. These rulers are known as the Eternals of Days, and they number exactly one billion, one for each of the Havona spheres. They are the offspring of the Paradise Trinity, but like the Secrets of Supremacy there are no records of their origin. Forever have these two groups of all-wise fathers ruled their exquisite worlds of the Paradise-Havona system, and they function without rotation or reassignment.