It would probably be a prequel about the heros of Grimel mentioned in chapter 3 or it would be a prequel on the backstory of the Linet
Viewing post in Deck Adventurers: Origins comments
I see. The story of the “Heroes of the Valley” mentioned already exists in my head. For a while I thought about writing a prequel myself, but I don't think that's going to happen, so it's fine. I can tell you the basis of the story if you want. I also have some of Linet's story written down (in fact, a little bit of it is told in the unpublished sequel).