Picture this: 6000 years after the end of the captive prince trilogy, society has evolved and it became somewhat similar to the one we have today.
One day in this modern society an enormous historical site has been found, a grave that contains the legendary king of Akielos and king of Veres, their remains laying together.
This grave is an incredible source of information as rolls and rolls narrating the lives of these two kings are found there; heck they find even numerous art and mosaics!
There is just one little thing that is not clear to the historians: where are their wives?
According to what they found, reproduction was required in these two kingdoms and to be legit it had to happen within marriage, so where are their wives! They aren't cited anywhere!
So the historians put themselves to work, trying to find the missing piece. They analized the massive amounts of scrolls found in their chambers: they narrated the story of these two kings, that met under terrible circumstances but together found their way to greatness; they reported how they together managed to eradicate slavery, and to unite two kingdoms that were before enemies; they described the strong bond between these two men.
The historians were baffled to find how deep this feeling really ran: how they sweared in a ceremony to always be faithful to the other, and in which they exchanged bracelets; how they never took any concubine or wife but always stayed together, it is even written that they shared a room!
They then looked at the art and in every single depiction the two kings were equals and depicted almost as spouses!
But what an absurd thought! That was just not possible, surely it must have been meant to be interpreted as a platonic bond so strong to be equal to a marital one.
In the end after countless searches the historians concluded that sadly these two kings never managed to find love. They nevertheless admired their close platonic bond, that amost looked fraternal in its closeness!