Imma be honest, this might come off as offensive to some. However…

I want to read a book where Christianity is considered mythology at that point. Kinda similar to how we consider the worship and existence of other gods (Zeus, Thor, etc) to by myths. Like I wanna see what would happen in that case.

If it doesn't exist or if I'm coming across as offensive for asking, sorry. I'm really not trying to, I'm just curious. Thanks!