Battle of Hogwarts

Preparations for Battle

"Hogwarts is threatened! Man the boundaries, protect us, do your duty to our school!"— commanding the suits of armour to protect the school.
McGonagall then ordered the students to be brought to the . There, McGonagall and announced that the students old enough to fight could stay if they wanted, while younger students would be evacuated by and by way of the passage through the . The professors set defensive charms and spell around Hogwarts to fend off , although they all knew that no matter what protection they gave, Voldemort would eventually penetrate it. As was being fortified, Harry asked Flitwick about Ravenclaw's diadem, but informed him that it had not been seen "in living memory." Meanwhile, McGonagall enchanted the school's statues and suits of armour to help defend the castle and ordered Filch to summon the Poltergeist to aid in the defence.

When Harry and Luna returned to the Room of Requirement, they found that even more people had arrived, including: Kingsley Shacklebolt, , , , , , , , , and . had alerted , and they, in turn, summoned the Order of the Phoenix. As younger students were being evacuated, an argument broke out about underage , who wanted to help fight. Her mother eventually relented to the point of allowing Ginny to stay at Hogwarts if she stayed in the . The Weasleys' estranged son suddenly arrived, and loudly apologised to his family for not supporting them; the Weasleys immediately forgave him. Looking around, Harry wondered where and were. Ginny told him they were attending to something having to do with a bathroom, leaving Harry puzzled.

The and the professors have agreed upon a battle plan and begin dividing into groups. As tension mounts over the approaching battle, Harry anxiously searches the room for Ron and Hermione, who were still missing.