Lucius and Grindelwald landed on the gates of Hogwarts. Once inside the barrier, Grindelwald apparated them to the entrance of the great hall just as the blast from the destruction of the brassard and sickle shook the castle. They waited for the waves to die down and walked in just as Voldemort yelled out in rage and disbeliefVoldemort got up and like a crazed man yelled "I am immortal!" He grabbed a candle-stand lying on the floor next to him and looked around for the first persons to kill he spotted Grindelwald and whispered "You’ll do..."