I've had a copy of this book since it first came out in August 1998, and it was one of my favorites back when the tie in books were coming out on an almost monthly basis. I must have read it at least 20 times between the ages of 11 and 14.
Does it hold up?
For the most part, yes. There is one major logistical problem with the book, (and I will get to that), but as for the plot, it works really well. I don't know a lot about Chinese and Japanese mythology. I know some Japanese ghost stories, but that's about it. So, I remember as a preteen finding all the random little tidbits about Japanese demons and such really interesting because it wasn't like anything I had come across on United States television or in any of my books on paranormal phenomena. This was my introduction to creatures like kappas and etus and the Japanese ideas about patron gods for specific cities. (I would later learn this idea was shared by Greek and Roman city states as well, but at 11 years old, I didn't know much about any of these things.) Nancy Holder, one of the two authors of this book, spent some of her formative years living in Japan and so a lot of the culture she learned while there has worked its way into the story.
For instance, this story is the first of Holder's books to talk about seppuku or being "blooded." This is the samurai method of suicide that is used to preserve honor in the face of the utmost disgrace and defeat. You stab yourself in the bowels and then one of the people you hold in highest respect -- your most trusted pupil, if you were a teacher or the one who has bested you in battle -- will chop off your head. It was considered the highest dishonor to not have your head chopped off. (It was also one of the most painful ways to die.) This is the first book she wrote in the Buffyverse that talks about this ancient rite of the samurai, but it's not the last one. She delves into it even more in Tales of the Slayer, Volume 3. And she may do it another time in one of the books set in a later season. (We'll see when I get there.) Obviously, stories from ancient Asia (especially Japan) mean a lot to Holder and I think she treats the Japanese culture especially with a lot of respect. And while the Chinese representation could have been better, it does make sense that the Japanese would make it so that only Chinese people could be vampires. That does sound very on brand. And we're not given a lot of time with the flashbacks to Ancient China to get a real feel for that empire, so I wouldn't say it's *bad* representation of China. It's just that we don't get any representation of the country outside of our villain, the vampire sorcerer Chirayoju.
The book's strongest selling point for me is the character work here. The voices are SO on point. Xander's humor and Buffy's quips, and Cordy's cattiness (but still her ability to care), and Giles looking after all of the teenagers (including Xander, which warmed my heart so much to see.) There have been other books by these two where the characters do something drastically OOC, but not here. Everyone is on point and their actions in the fight scenes are fully described, which made it so much fun to read. Because the fight scene became something you *could* actually see. Even if what I saw in my mind's eye felt distinctly anime-esque.
The pop culture references were also great. I do think it dates the novel quite a bit. I mean, who growing up nowadays is going to understand that reference to Dr. Green from ER? I got it cos I used to watch that show with mom every week and Dr. Green was my favorite character on it -- we won't talk about how badly I cried when that character died -- but if I was a young person picking this up now? I'd have no idea. I might get the Dawson's Creek reference via cultural osmosis, but probably not the obscure medical drama note.
What doesn't hold up so well with this book is a logistical problem. Namely, that it was written while s02 was still in production and released between s02 and s03 and is meant to be set in early s03. But none of the emotional beats for anything post s02 make sense within the context of this book. For one, it assumes that s02 would end before the end of Junior Year because it's stated numerous times that SATs are "next year" and Oz is a senior, but Willow isn't. Things like that. Which would place this during s02. However, Miss Calendar is dead, and Angel has his soul back and Giles and everyone else is totally fine with him. And Buffy's mom has no idea that Buffy is the Slayer.
As anyone who has watched the show knows, none of this adds up AT.ALL. After Angel returned in s03 (during which Senior Year has officially started), none of the Scooby Gang, outside of Buffy herself, felt safe around Angel for quite a while. And Giles in particular took Buffy to task over Angel coming back into their lives after 1) killing Ms. Calendar, and 2) torturing Giles for nothing more than Angel's own sick pleasure, and 3) trying to end the world. It's obvious that this was written sometime before the airing of Becoming Parts 1 and 2 because if Holder and Golden had seen them beforehand, the Angel situation would have been tackled very differently.
Also Willow doesn't know any magic in this, and as of the end of s02, she has gotten quite good at it.
Yeah, if you look up when this book is set chronologically, it is always listed as s03 story insert, mainly due to being post-Angelus. But it really doesn't belong there. This is really more of an alternate universe late s02 story where they managed to give Angel his soul back before he pulled the sword out of Al Franken (to quote Buffy herself.)
It doesn't really make the story any worse than it would be otherwise. But it is distracting when you're trying to place it within the show's larger canon. So just be aware that it doesn't logically fit anywhere into the visual timeline.