all the governments in the world know about Dracula's existence in secret. I thought that was kind of neat.
Except Aria of Sorrow and to a lesser extent Dawn of Sorrow, Portrait of Ruin, and Order of Ecclesia all implied this at varying points. Hell, it's essentially part of the premise of OOE if you read between the lines even a little -- all those splinter groups trying to beat Dracula needed funding from somewhere and the Church can't fund all of them. Governments would be swifter to shut down a failed and expensive project than the church would. This is especially the case because the Vatican seems to know something approaching the truth of Dracula's original identity, and failing that, they just have a better idea of how dangerous he really is if left unchecked.
Most importantly, it felt like it fitted very well in Castlevania universe despite it being a novel. A lot of authors of video game tie-ins fall in the trap of either following the game mechanics too closely (monsters dropping hearts, pretending the characters have an actual health meter, etc) or making it feel too disconnected from the games. This novel struck a very good balance between the two.
The best examples I've seen of this skillful execution are the two Devil May Cry light novels by Shin-Ya Goikeda -- they really felt like Devil May Cry stories, especially the second one which explains how Dante goes from being his devil may care trash talking self to the stone-faced man of few words in DMC2: he had to kill an Evil To The Core version of Trish in battle and it's heavily suggested this rattled him emotionally for several months to a year at least and DMC2 takes place in that span in which he's essentially suffering from PTSD but he soldiers on anyway -- it also explains why he's something of a death seeker in his ending cutscene.
Reading the Devil May Cry light novels really sheds a lot of light on Dante's past and what made him the man he was -- something the games seldom touch on, and never do in any real detail except for Dante's relationship with Vergil in DMC3.
I kind of wish the Ricordanza book had found the time to do any of that with Death, Olrox, or preferably both. Hell, some insight into Soma Cruz (who is barely in the book at all) would have been nicer still.
I believe he also acts a bit honourable in this novel when he acts like a stereotypical villain in the games. Also, absolutely nothing about Orlox's backstory.
That's another gripe. Death feels a little like a completely different character to me in this. It would have been nice if it had been justified like Harmony of Dissonance did (albeit HOD did it indirectly, but it made Death come off as a strategic mastermind to me). And Olrox remains a semi-frustrating mystery as he has always been.
I think the worst part though is that the book just felt like wasted space to me --here they had an opportunity to write something really cool: stories set in a (finally!) Post-Dracula world. What does that world look like? How does this affect the balance of good vs evil? What about all that stuff Saint Germaine was talking about that took place in the distant future? Couldn't we have gotten a cameo from him since his plotline in Curse ended up going... well... nowhere and straight into a cliffhanger that is never addressed at all by future stories? Why couldn't this have been the story to address that?
There's a whole bunch of cool stuff this could have been, but wasn't, and what we got instead was unnecessary, confusing, poorly written and just... ugh.
I'm going in circles here -- it's just not good and if you're reading this thread and you are some kind of completionist who MUST CONSUME everything in the franchise for some reason, just have it described to you in detail by someone who read it and enjoyed it. You'll be better off that way.
Fortunately, this is also at the ass-end of the timeline chronology-wise, so if we just make a clean incision just after Dawn of Sorrow ends, the prior status quo is preserved and we incur no changes to the rest of the canon.
I think that's the best canon tumor removal operation I've yet seen.