This book takes place in a time after J. G. Rollins (J.K. Rowling) writes the Barry Trotter series which is really loosely based on Barry Trotter's life. Because of the series muddles (muggles) now know of the wizarding world. Barry and Ermine return to Hogwarts for a class reunion with their son Nigel, who identifies with muggles and is entirely non magical. Soon after arriving at Hogwash the headmaster Dorco (Draco) falls perilously to his death. Ermine wants to solve the case of Dorco's murder, so does Barry, but only so he can send the murderer "one hell of a fruit basket." That's really as far as that plotline goes.
This book is interesting in that it has shows how the wizarding world has evolved to include things like cell-owls, which were "much more portable but easier to lose."
It was a book that made fun of itself, which was quite hilarious, I've never come across a book that did.
Sometimes though I wasn't sure whether to be offended or laugh. But most of the time it was really funny.
I'm glad that the author mostly stayed true to the characters. Ermine is mostly very much like Hermione, though sometimes she was more interested in sex than the goodwill of the students, who frequently died in this book, mostly from Quiddit or exploring and pretending to be Harry, Ron, and Hermione. But some of the things Ermine did Hermione totally should have done in the Harry Potter books, like hiding out in the library so she could study all night. Barry wasn't like Harry at all, he was more like an immature James Potter which was amusing.
This book is the closest best thing to an epilogue I have, thanks to J.K. Rowling who refuses to write another Harry Potter book, which isn't saying much. However, some of it was an accurate representation of what Harry and Hermione's life with their kids would be like, in the modern wizarding world.