The Mikaelson's and Sommer are on a wild ride when The Hollow comes for them. While Sommer has her inner demons to worry about, what will they do to stop The Hollow? What will happen when they all have to go back to New Orleans? Find out in The Hollow Within. This is the 3rd book of the Kol Mikaelson Series. Books In Order: 1. Revenge Within 2. The Hybrid Within 3. The Hollow Within 4. Broken Memories Within 5. The Devilish Sociopath 6. Prophesy 7. Sister Trouble 8. Always & Forever