The Night Huntress Series and Night Prince series is an amazing series. So far there are six novels out for the Night Huntress Series (the seventh book will be out at the end of the year) and One book for the Night Prince ((the second book will be out on March 23rd, or 24th, forgot lol) oh and it is set in the same universe as the Night Huntress Series. There are two spin-off novels, which I recommend. : )
Anyone ever read them? The author is Jeanine Frost.
Ps: AND yes, vampires are involved. It's nothing like Twilight though.