One of the main themes is the exploration of a supernatural world. It often delves into the lives of vampyres and their unique society. Another theme could be friendship and loyalty as the characters face various challenges together.
The redeemed ones might focus more on the characters' redemption arcs. For example, a character who was previously on a darker path may be shown to be making amends or finding a new purpose in the redeemed novels.
The 'Graceling Realm' books share some similarities. In 'The House of Night', there are unique powers and abilities that the characters possess. Similarly, in the 'Graceling Realm' series, characters have special 'graces' which are extraordinary abilities. Both series have a strong focus on character development within a fantasy world.
The House of Night series by P.C. Cast and Kristin Cast is typically read in the order they were published. The first book is 'Marked', followed by 'Betrayed', 'Chosen', etc.
One series that is similar is 'The Vampire Academy' series. It also has a world filled with vampires, boarding school settings, and complex relationships among the characters.
One of the main themes is the struggle between good and evil. The characters in the House of Night novels often face moral dilemmas that test their loyalties. Another theme is self - discovery. The young vampires are constantly learning about their new powers and identities. Also, friendship and loyalty play a big part as the characters rely on each other in a world full of danger and mystery.