After Buffy, the vampire slayer, brought about the end of magic there has not been much need for Watchers - the men and women who support Slayers. All of the former Watchers are now living in a castle, still learning about demons and other creatures as well as ways to help the Slayers that are still out there. Nina knows that she will not be chosen to become a Watcher so she has been honing her healing skills instead. Her twin sister Artemis has all the strength and cunning to be a Watcher but has somehow not qualified. After witnessing an anomaly, Nina feels herself change in some way. And then when a hellhound attacks the castle and she kills it with her bare hands, it is clear that she has become the last Slayer.
"Buffy the Vampire Slayer" is still one of my most favorite TV shows ever so I snatched up this book as soon as I could get my hands on it. It is good but of course did not live up to actual Buffy. In fact, Buffy is kind of one of the villains of the book because she broke magic. If you're not coming loaded up with Buffy baggage then this is a pretty good story filled with good and bad creatures, double-crosses, misunderstandings, and killing. Nothing too groundbreaking, but well done and fun.