While the battle raged, Harry hunted Nagini. He found her slithering beside Voldemort in the Great Hall, both shielded by layers of dark magic.
"Leave the snake to me," said ARC. "Focus on him."
With a pulse of blue light, ARC emitted a focused spell-nullifier field—briefly stunning Nagini's enchantments. Harry sliced through her with the Sword of Gryffindor, now reinforced with anti-Horcrux runes.
Then… Voldemort.
They clashed in a blur of power. But this wasn't the Harry of yesterday.
Every spell Voldemort cast was dissected in real-time by ARC, countered before it landed. Harry shifted styles mid-duel—mixing dueling forms, conjurations, and even self-generated magic learned from the Room of Origin.
Then, at last, as Voldemort launched his signature Avada Kedavra—
"Redirect with Reflective Entropy Glyph. Now."
The Killing Curse rebounded, not because of a wand link, or love protection—but because Harry understood the magic better than Voldemort ever did.
The curse struck home.
Tom Riddle fell.
And this time… he stayed dead.