"Harry, don't tell me you mean to..."
Hermione had guessed how Harry intended to deal with the dragon before them.
"There's no other way. We have no means of subduing a dragon. If we want to get through here and safely reach the Lestrange family's vault, we can only kill it."
Ron, who had taken Felix Felicis with them, had finally caught up with their train of thought.
"Letting it go is still better than leaving it trapped here forever. If it were me, I'd rather die than be stuck in a hellhole like this."
"Come to think of it, it should be thanking us for setting it free."
Harry and the others' conversation left Griphook beside them utterly stunned. It was as though the creature blocking their path was not a ferocious dragon, but a bug that could be casually crushed at any moment.
Before Griphook had fully processed it, Harry had already raised his wand, stepped sharply out from behind the corner, and fired an utterly ordinary-looking stream of Fiendfyre at the dragon.
Over the past few months, Harry had used Fiendfyre countless times and knew full well how terrifying it was. When the Fiendfyre collided with the dragon's breath, it began to infect and devour the Dragon Flame, even sweeping the engulfed flames back toward the dragon and completely swallowing it whole.
A piercing scream echoed through the room, making Griphook's face go deathly pale as he watched. He had already guessed how Harry and the others intended to open the Lestrange vault.
"That's... Fiendfyre!" Griphook's voice trembled.
It could not be helped. What had happened when the Malfoy family had been swallowed by Fiendfyre was far too famous. Almost no one failed to recognize this evil Dark Magic.
"Don't worry. We can control it."
As soon