Lucijus je oduvek bio smrtozder i bio Voldemorov pristalica.Dao je Voldemortov školski dnevnik Ginny Weasley i vodio operaciju u delu za misterije. Ucenjivao je članove školskog nadzornog odbora i takodje iza sebe ima bezbrojne slučajeve podmićivanja. Začarao Brodericka Bodea i možda Sturgisa Podmorea kako bi nabavio proročanstvo za Voldemorta.Bio je u Azkabanu.Nakon sto nije uspeo da odradi zadatak koji mu je Voldemort dao u delu za misterije,on ga muci neprestano.Zadao je Drakou zadatak da ubije Dambldora,iako je znao da nece uspeti,samo da bi mu se osvetio.
(Voldemort uzima Lucijusov stapic i lomi ga,Harry Potter and the Deathly Hallows)
(Lucijus u odseku za misterije po Voldemortovom naredjenju,Harry Potter and the Order of the Phoenix)
Voldemort: "Lucius my slippery friend," he whispered, halting before him. "I am told that you have not renounced the old ways, though to the world you present a respectable face. You are still ready to take the lead in a spot of Muggle-torture, I believe? Yet you never tried to find me, Lucius…. Your exploits at the Quidditch World Cup were fun, I daresay … but might not your energies have been better directed toward finding and aiding your master?"
"My Lord, I was constantly on the alert," came Lucius Malfoy's voice swiftly from beneath the hood. "Had there been any sign from you, any whisper of your whereabouts, I would have been at your side immediately, nothing could have prevented me –"
"And yet you ran from my Mark, when a faithful Death Eater sent it into the sky last summer?" Said Voldemort lazily, and Mr. Malfoy stopped talking abruptly. "Yes, I know all about that, Lucius…. You have disappointed me…. I expect more faithful service in the future."
(Voldemort uzima Lucijusov stapic i lomi ga,Harry Potter and the Deathly Hallows)
(Lucijus u odseku za misterije po Voldemortovom naredjenju,Harry Potter and the Order of the Phoenix)
Voldemort: "Lucius my slippery friend," he whispered, halting before him. "I am told that you have not renounced the old ways, though to the world you present a respectable face. You are still ready to take the lead in a spot of Muggle-torture, I believe? Yet you never tried to find me, Lucius…. Your exploits at the Quidditch World Cup were fun, I daresay … but might not your energies have been better directed toward finding and aiding your master?"
"My Lord, I was constantly on the alert," came Lucius Malfoy's voice swiftly from beneath the hood. "Had there been any sign from you, any whisper of your whereabouts, I would have been at your side immediately, nothing could have prevented me –"
"And yet you ran from my Mark, when a faithful Death Eater sent it into the sky last summer?" Said Voldemort lazily, and Mr. Malfoy stopped talking abruptly. "Yes, I know all about that, Lucius…. You have disappointed me…. I expect more faithful service in the future."