What is a soul ? Is it your true self ? Would you be the same if your soul kept traveling from life to life but your memories faded for each new life you had ? Your education would be different each time, your growing environment would be different, your personality might change. So what is the purpose of the soul ?

Mortals never got an answer for this question. Finding an exact definition didn't matter for them, what they knew was that a soul allowed reincarnation. Even if they lost some memories, getting glimpses of their past lives was more than enough. Getting the possibility of a new life, a better life was what they thrived for.

This became an even greater truth as progenitors, the first of their cycle, became scarce. As hundreds of new progenitors were born each century, nowadays, no more than a handful of them appeared every 200 hundreds years.

As they represent a new cycle, they embody new opportunities: some progenitors have made kingdoms, others have been their doom.

So when four of them appeared at the same place, at the same time, how can it not be perceived as a sign ? A sign that things were about to change…