Heort's experience (along that of with his other Unity Council counterparts) is unique (at least among humans). If you aren't a Heortling, you don't have IFWW. Maybe you have some other story about how your ancestors survived the Darkness by learning to eat bark, or by falling asleep, but unless you were from one of those handful of population centers (like the Heortlings, the Dara Happans, the Malkioni, etc), your own mythology will likely gloss over how we got from the Darkness to the Dawn (like simply saying something like the gods came back for whatever reason).
Obviously, the other population centers each have their own epic tale of not only surviving but defeating the Darkness. But that tale is not IFWW.
It is also worth keeping in mind that non-Heortling Orlanthi do not have IFWW. The Ralian Orlanthi - which are almost as significant a core Orlanthi culture as the Heortlings - do not have IFWW. They have Ernalda, the Lightbringers Quest, all the core Orlanthi myths, but not IFWW or Heort.
Jeff
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