Immortal Kiss was written and copyrighted in 1996 and later published in 2014. Bound by Blood and The Vampire Within were originally written as one book and copyrighted in 2001. Due to the length and many characters, it was separated into two books in 2014. Bound by Blood became book 2 in the series, published in 2016 and The Vampire Within became book 3 in the series, published in 2018.