During the books quotes where being placed at major points in the story. Some of these quotes are on the Karaethon Cycle others include quotes by Loial. One of these may quotes where by a unknown author. They where written in the fourth age by a author who dose not wish to be known, this person must have had major knowledge of the events that took place before, around, and after the last battle and who will still be alive during the fourth age. This leaves Cadsuane Melaidhrin who we know has more knowledge then she has a right too, or Rand al'Thor who survived the last battle and who might still what to contribute to the world and the great schools he made (as he demanded the the dragons peace).

Examples include:

"And the Shadow fell upon the Land, and the World was riven stone from stone. The oceans fled, and the mountains were swallowed up, and the nations were scattered to the eight corners of the World. The moon was as blood, and the sun was as ashes. The seas boiled, and the living envied the dead. All was shattered, and all but memory lost, and one memory above all others, of him who brought the Shadow and the Breaking of the World. And him they named Dragon." ~ 

(from Aleth nin Taerin alta Camora,
The Breaking of the World.
Author unknown, the Fourth Age)