This book is the second Omnibus in the Vampire Diaries series. I have also heard that these are the final two books in the original Vampire Diaries that Smith wrote in the 90's. This was a satisfying conclusion to the series.
In the first book (the Fury) Elena has been changed into a vampire. As she struggles to deal with her change, strange things are happening in town. Peoples pets are attacking them and darkness threatens to take over. Can Elena get Stefan and Damon to work together to help stop the forces against them. In the second book (Dark Reunion) dark forces are again converging on the town and Elena needs to work with her friends to stop yet another threat to her home.
These books are much more traditional vampire books than the Twilight series; there is also a lot more fighting in these. I am hard-pressed to discuss these books much without given things away. Suffice to say that if you liked the first couple books in the series, these books won't disappoint. They are non-stop action, with the love triangle between Damon, Stefan, and Elena causing lots of tension. The side characters are well developed too. I enjoyed these books and couldn't put them down; a very quick read.
Everything is nicely wrapped up at the end of Dark Reunion; I don't plan on reading the latest book released in this series because I have heard it's not all the great and not part of the original series. As for reading more of Smith's work, I probably won't do that either. Her writing is good, but it is not all that creative and it is typical to a lot of other young adult series that are out there. If you liked House of Night, Evernight, or the Vampire Academy you will probably like this series; this series has more in common with those series than it does with Twilight.
I, too, read this volume in quick succession to the first Omnibus. The Fury was written well. I felt like I had to continue reading to see what would happen next. Not a real in depth plot, but after reading the first volume, I didn't expect it to be. Dark Reunion, however, is a different story. I felt like the main characters in the previous book were not "main" in this book at all. I would have like to have heard more from both Stefan and Damon's perspectives instead of Bonnie's. It felt like the author needed to "fix" the ending she left in The Fury...which is fine, but I think that a little more vampire and a little less human plot lines would have made the story much more enjoyable.
I didn't like the first two books much. In my review I gave them 3 stars. In this case it is more 3 ½ stars because of The Fury that is in my opinion the best book in the saga. The Fury is everything that the other 3 books aren't. It makes sense, you definitely care about the characters and understand them better...their choices, their motivations and many important questions from the previous books got answered. Elena suffers a metamorphosis and I found myself caring for her after all and grieving with her. I felt more involved in the story and not like a spectator anymore. It has some flaws but they can be forgiven...overall it is a good book and it's worth reading.
The Dark Reunion, on the other hand, shouldn't be part of this saga. Even though it has some good and interesting parts it felt to me like the sequel of a movie that shouldn't had had a sequel in the first place. It didn't add anything new to the main story, to the main conflict. It didn't developed the characters any further and was almost entirely told from Bonny's point of view and that felt like going back to the beginning when Elena was annoying and self absorbed. It did attempt to give us some insight on Damon's mind...and to bring down that cruelty mask he tries so hard to keep on, but it failed because we only saw flashes of that.... maybe if the book would have been told from Stefan or Damon's point of view it would have been better. The end of the book was just over the top...it was a fairy tale happily ever after ending that was incongruent with the entire story....it left lots of questions unanswered and it did not fit with any of the myths or supernatural stories u have ever heard of...something just happened that can't be justified in any way you can think of. I don't see how someone can go from being human to be a vampire... to be actually dead...gone...to then become some kind of entity or spirit that can be summoned and that also has powers to heal humans, vampires and just about anything... to the next second be (literally) human again, a human that fell from the sky (literally).
In conclusion, I think that there are many vampire romances series out there that are way better than this one and The CW TV series is so far better than these books. I hope they keep changing things making the story more logical and the characters more likable. Needless to say I won't be reading the new books that are coming out...this is the end of the road for mi with this story....