This is one of Kallysten's more subtle, less sexual gymnastics, and more love and feelings books that i have read. There has been a pact that has been in place for over 75+ year, Matthew loved Claire's Great-Grandmother and promised her he would watch after her bloodline for etenity, and he has kept his vow, though it has become difficult of late as her great -granddaughter Claire has been living with Jonas, a Special Enforcer, basically he kills bad vampires as there are no true jails to hold them in for their crimes. He is also a horrible liar, cheater, and all around jerk of a boyfriend (whom Claire finally wises up, kicks out and changes the locks on) !! After doing this She decides she needs some fun in her life and heads toThe  Edge, a nightclub she's heard about, for a walk on the wild side with vampires,  not realizing how wild it was truly going to get !! There she runs into and becomes infatuated with Matthew, the one thing neither her Great-grandmother or he had ever felt would be a problem, as back then; vampires and humans didn't mix. This couple has a lot of things going for them, as well as a few things that need to be resolved, and I'm betting on Kallysten bringing them to a satisfying close in the next book. I wish Amazon would allow half stars as this book is definitely a 4.5 for me !!