Little was known about the Hexad, even amongst the TruthSeekers.
Its origins, as well as its true nature, were unknown.
Perhaps, the only thing that stopped it from being regarded as the 8th mystery of the world was the fact that it was still being studied by modern scholars and other members of the academic community.
Since its discovery in the third era by Sir David the Third of House Belmont, his soul rest in peace, it had been instrumental in the growth of mankind.
The only entity as impactful as the Hexad to human development would be Khanna and even she appeared to be lacking when placed side by side with the Hexad that had helped with the development of the six core sciences.
Considering how influential it is, one would be forced to wonder why mankind didn't regard it as a deity or why Khanna would risk helping the TruthSeekers by creating the Orb of Truth which aids the Seekers in communicating with the Hexad.