Sean Gordon Murphy has revealed a spoiler for his upcoming comic, Batman: White Knight.

We already know that Batman: White Knight will offer an interesting take on the Joker. Murphy has told us that the book will see a "cured" Joker join Harley Quinn in "the love story you've always wanted." We also know that there will be a role reversal of sorts, with the Joker engaging in a political campaign to paint Batman as a menace. And then there's this:

Breaking–DC is letting me create a brand new villain in Batman: White Knight! Here she is suiting up… pic.twitter.com/3C2AFIgay4 — Sean Gordon Murphy (@Sean_G_Murphy) July 28, 2017

But the most shocking revelation about Batman: White Knight is all in a name: Jack Napier. Napier is the version of the Joker portrayed by Jack Nicholson in Tim Burton's 1989 Batman movie, a homage to Nicholson himself and actor Alan Napier, who played Alfred Pennyworth in the 1960s Batman TV show.

And now, in the comics, according to Murphy on Twitter:

Big news: JACK NAPIER will be the name of my JOKER. Warner just approved–1st time Napier has been in a comic (minus Burton adaptations). pic.twitter.com/u4YwZLMmGL — Sean Gordon Murphy (@Sean_G_Murphy) August 17, 2017

Well, that's not entirely true. Jack Napier was a character in Ed Brubaker and Sean Phillips' Batman: Gotham Noir in 2001. But he was never technically named as The Joker in that, so maybe it's a technicality.

Batman: White Knight hits stores on October 4th.