Quote Originally Posted by Xlantaa View Post
Probably not. The Story of Edda continues from Tam-Tara normal to Tam-Tara Hard. Palace of Dead probably won't require the completion of the Tam-Tara hard to go in. So, in this case, the story will be fragmented for those who enter palace without complete Tam-Tara hard. So, I think won't be Edda. I think is just a new character created for this sidequest.
Please remember that SE does modify text and cutscenes based on the content you have completed.

Entering after you unlock it at 17 (which will likely require completing Tam-tara normal) might have different story cutscenes than at 24 after Thousand maws and 50 after Tam-tara HM.