He doesn’t know about the horcruxes. He may suspect that Harry is Voldemort, but Harry doesn’t know that, and thus has little reason to think that Lucius would believe him either. For the most part, the Death Eaters are as convinced as anyone that Voldemort is dead.
He doesn’t know about the horcruxes. He may suspect that Harry is Voldemort, but Harry doesn’t know that, and thus has little reason to think that Lucius would believe him either. For the most part, the Death Eaters are as convinced as anyone that Voldemort is dead.