/lit/ - Literature

This isn't for an actual book or anything, but say I had a world that was a bit like Dune in terms of the type of sci-fi. As in, supernatural elements existed very subtly, as did weird tech and occultism, but for the most part there was nothing supernatural. Now say that I miss this character I killed off in my story and his daughter is having these visions of if she goes on a great journey she may be able to find some ancient tech (from a faction I already introduced that lives in the middle of the hollow planet on a series of asteroids, having been exiled there because they "built" the planet then were locked inside when the colony ships arrived 10,000 years later and by then they were more evolved and thus the "inferior" people were locked away) that would allow her to resurrect him. She and her brother have already replaced him as the "main" characters but her brother just isn't as strong of a character, I liked having a generic protagonist (even though he really wasn't that generic) and he is too tied up with running his own fleet of ships to be that into the action while still making sense. She isn't, but ... I don't know, I want to resurrect him but I worry that (1) it's hacky, and (2) his place in the story is gone, it's like (to use a shitty example) if Jk Rowling started writing a book about Harry Potter's children, but then didn't like any of the characters she made for this new series so she brought Harry Potter back from the dead to fill in for them. It's a bit like that, and it's a shitty story like HP anyway so it's kind of a fitting example. I would like any advice you may have, however.