A Good Brother-in-Law, and the Right to Guard the Hostage

"Piertotum Locomotor!"

Professor McGonagall waved her wand in the entrance hall, activating Hogwarts' defensive magic.

Thump! Thump! Thump!

Every statue and suit of armor in the castle sprang to life, landing solidly on the floor with rumbling impacts.

Bearing swords, spears, and shields, they marched out of the entrance hall in neat formation. They looked orderly, disciplined, and exceptionally reliable.

"Hogwarts is in grave danger. Form a defensive line, protect us, and do your duty for the school," Professor McGonagall declared loudly, her face trembling with excitement. "I've wanted to use that spell for so long."

"Are we just going to sit here and do nothing?" Harry asked Aaron in confusion.

Everyone else had gone to prepare for battle. Even Fang had been led out by Hagrid. Yet he, the Chosen One, was sitting here doing nothing. He could not help feeling anxious.

"Be patient. Your battlefield is different from theirs," Aaron said earnestly. "In this war, you have only one opponent: Voldemort.

"Until you face him in a direct final battle, avoid contact with any other enemy as much as possible.

"You'll understand why soon enough. But before then, I want you to obey my orders unconditionally."

Harry frowned, hesitating for a moment.

He trusted Aaron, but simply sitting here did not feel right no matter how he looked at it.

"Give me a task!" Harry said anxiously. "Even helping evacuate the students would be fine!"

"Your only task right now is to adjust your mindset and conserve your strength."

"But..."

Aaron slapped Ravenclaw's Diadem onto the table. "No buts. Sit here and behave until it's destroyed."

Harry Potter: ...

Second by second, Hogwarts was gradually shrouded by night.

On the cliff, Voldemort leisurely admired the view of Hogwarts. Behind him, more and more Death Eaters dressed in black