77:2.1

While this is the narrative of the origin, nature, and function of the midway creatures of Urantia, the kinship between the two orders—primary and secondary—makes it necessary to interrupt the story of the primary midwayers at this point in order to follow out the line of descent from the rebel members of the corporeal staff of Prince Caligastia from the days of the planetary rebellion to the times of Adam. It was this line of inheritance which, in the early days of the second garden, furnished one half of the ancestry for the secondary order of midway creatures.