A spin-off series called Bloodlines follows several characters from the Vampire Academy series and is centered around alchemist, Sydney Sage. There are six books planned for the series.
The first book in the series Bloodlines, was released August 23, 2011. It eventually reached the number two spot on The New York Times Best Seller list in March 2013. It was followed by The Golden Lily on June 12, 2012, which debuted at number one on The New York Times Best Seller list. The third book, The Indigo Spell, was released February 12, 2013. The fourth book, The Fiery Heart, was released on November 19, 2013. The fifth book, "Silver Shadows", was released on July 29, 2014. The sixth book 'The Ruby Circle' was released February 10. 2015.