Oh, I know. That man harrassed Mr. Norrell and stole the very same spells that Strange first used from me.

[ Seeing how it's all caught up in one big ridiculous prophecy, realizing that ended up being funnier than it was infuriating, even if, at the time, how much he tried tracking Vinculus down all over again was a damn headache. ]

But no, it didn't. I did cover what he got up to in Venice but the rest kept referencing a nameless slave. I have always thought that meant John Uskglass himself but he keeps telling me that I'm wrong about it.