At the end of the series, Lucius experiences a significant shift in his loyalties. Initially a devoted follower of Voldemort, Lucius eventually abandons his loyalty to protect his family. This change becomes evident during the Battle of Hogwarts, where he prioritizes the safety of his son over his allegiance to the Death Eaters. After the battle, Lucius and his family are pardoned for their crimes due to their last-minute defection from Voldemort's side. Thus, Lucius Malfoy's story concludes with him prioritizing family over power, a stark contrast to his earlier character portrayal.