35:2.6
When a Creator Son enters upon the bestowal career on an evolutionary world, he goes alone; but when one of his Paradise brothers, an Avonal Son, enters upon a bestowal, he is accompanied by the Melchizedek supporters, twelve in number, who so efficiently contribute to the success of the bestowal mission. They also support the Paradise Avonals on magisterial missions to the inhabited worlds, and in these assignments the Melchizedeks are visible to mortal eyes if the Avonal Son is also thus manifest.