I think there could be either a novel or Bible study treatment of schisms. There’s the biblical schisms against false teachers, the tension between Jerusalem and the Gentiles. Then, there are schismatic heresies: gnosticism, arianism, etc. A lot of rich stuff people rarely know about.
There’s the Eastern/Western schism. The Protestant expulsion from Roman Catholicism, and the concept of catholic is one still well worth considering.
There is the schism of divorce, of leaving one confession for another, and more. Oh, there’s the denominational affect of claiming to be non-denominational!!!! As though there are non-denoms stemming from various traditions! lol
What do you think? Could there be a single study over those? Or would a novel be able to treat each one separately to greater effect?