I confess that I had read these before, many years ago.  I got a special offer for the Kindle version of all six books at one time and decided it might be nice to revisit.  And it was.  So much so that at the end of the last one I immediately (at 1:00 AM) popped on site and ordered the next six delivered to my Kindle for uninterrupted reading.  I recommend these if you like a good storyline.  There are Vampires and other aspects of the supernatural as well as political aspects, romance and some violence; albeit of the non horrific type.  Read these anytime, daytime or night time.  You won't loose sleep you will gain a desire for the dark.