So, about Duny...? [Spoiler..kinda]

So I haven’t read any of the books (yet) and unfortunately until this show, which I am absolutely loving, my only Witcher experience has been Wild Hunt. Recently I’ve been trying to straighten out the plot points from Witcher 3 I didn’t pay as much attention to, especially with the new information from the show. And I got to thinking about Emhyr being Ciri’s father. So Duny, the hedgehog knight, is Emhyr right? The White Flame who dances on his foes and all that?