The black arrow failed to kill Smaug; it was even melted by his dragon fire.
This outcome greatly disappointed everyone who had been hopeful.
"Bard, there's still a chance!" Luke quickly shouted, looking at the disheartened Bard.
Bard looked up, shaking his head with a bitter smile: "But the only black arrow that could kill the dragon is gone! What else can we do?"
Luke pulled out a magnificent spear, shimmering with silver light, from his spatial pouch.
"This is the divine spear aeglos, the weapon of Gil-galad, the High King of the Noldor. It once pierced the armor of the Dark Lord Sauron and wounded him, possessing an unbreakable penetrating power. Its length is similar to that of the black arrow; use it to shoot the dragon again!"
Luke said as he threw the silver spear to Bard.
Bard was very surprised to receive the spear; he had some discernment and could tell that this spear was incredibly powerful, far more precious and sharper than his own black arrow.
However, he then expressed some concern: "But the dragon is already on guard, and the gap in his scales has been mended with magma. I'm afraid he won't give us a chance to hit his weak point."
Luke shook his head, his face full of confidence.
"This time, we won't shoot at the gap in his chest scales."
"Not the gap?"
"No, not there. Aim for his wing. I need you to sever one of the dragon's wings, completely stripping him of his ability to fly!"
Luke said with a very serious expression:
"I'll create an opportunity for you later, only one chance, to shoot him down. Can you do it?"
"I can!" Bard nodded firmly.
Luke looked deeply at Bard, hoping that fate would favor him this time.
Then he turned his broomstick and chased after the dragon Smaug.
At this moment, Gandalf on the dragon's back was also very busy, one hand tightly gripping foe-hammer, which was stuck in the dragon's back, and the other hand holding his staff, casting Holy Light spells to prevent the dragon from opening his eyes, forcing him to fly erratically.
This also gave Luke a chance to catch up. Another Crucio spell went off, weakening the dragon's speed and reaction.
Luke and Gandalf cooperated tacitly, intentionally or unintentionally herding the dragon back towards Bard's direction.
Seeing that the dragon had entered Bard's firing range, Luke cast a spell with all his might again:
"Imperio!"
The magic of Imperio struck the dragon Smaug.
For the first time, Luke clearly felt the immense power of the dragon's soul.
No wonder his Avada Kedavra couldn't kill Smaug. The Imperio acting on the dragon's soul was like him trying to move a Giant that was countless times heavier than him, extremely strenuous.
However, even so, it successfully made the dragon lose his focus for a few seconds, and his movements became sluggish.
"Now! Bard!" Luke's veins bulged as he gritted his teeth and shouted loudly.
Bard rested the divine spear aeglos on the Giant crossbow. As Luke's voice rang out, he, who had already aimed at the dragon, instantly shot the divine spear.
As the divine spear transformed into a silver light, emitting a rapid whooshing sound, the divine spear instantly pierced through the dragon scales and struck the dragon at the connection point between his wing and body.
Accompanied by a mournful roar from the dragon, the dragon, like a bird with a broken wing, plummeted straight towards the ground under the force of gravity and acceleration, taking Gandalf on his back with him.
With a thunderous crash, the dragon heavily slammed into Lake-town, raising monstrous waves.
The dragon's body was too enormous; even after falling into the lake, half of his body remained exposed on the surface.
As for Gandalf, he was still standing on the dragon's back, completely unharmed.
He waved his staff, continuously striking the dragon, releasing shockwaves and Holy Light spells, forcing the dragon back into the lake.
Smaug tried to struggle and fly again, but the wing wounded by the divine spear aeglos was no longer strong enough to support his flight, and he embarrassingly fell back into the lake.
"No! It shouldn't be like this! I won't lose like this!" The dragon struggled incessantly, letting out continuous mournful roars.
"Ice Bound!" Luke released cold air towards the lake water around the dragon, and the lake surface rapidly froze, attempting to seal the dragon within the ice.
The dragon discovered Luke's intention and struggled even more fiercely: "Don't think you can trap me! Let everything be destroyed!"
Smaug roared madly, then spewed scorching flames to burn the lake water, even spraying flames at himself to prevent the lake from freezing.
Smaug's frantic actions forced Gandalf to jump off his back to avoid being burned by the flames.
The flames spewed by the dragon were extremely difficult to extinguish. Even in the lake, the flames continued to burn on the surface and spread outwards, gradually threatening Lake-town, which was not far from here.
"Luke, we need to find a way to make him stop breathing fire, or else Lake-town might be burned down!" Gandalf reminded loudly.
Luke naturally knew the seriousness of the matter and immediately waved his wand.
"Water Prison Restraint!"
As magic surged, a Giant whirlpool appeared on the lake surface, forming a rotating Giant water sphere that trapped the dragon within, spinning him continuously, and even engulfing the flames he spewed.
This was the advanced water magic "Water Prison Spell." When Harry Potter went to the Ministry of Magic's Department of Mysteries in his fifth year, Dumbledore used this spell to trap Lord Voldemort.
When Luke saw this spell in the book of spells, he was deeply impressed by it and learned it.
Creating a Water Prison large enough to trap a dragon was not easy, but fortunately, he had the advantage of the terrain now, with an inexhaustible supply of lake water that could be summoned.
The dragon was seen tumbling left, right, up, and down as if in a tumble dryer. As soon as he opened his mouth, lake water poured directly into his throat, giving him no chance to breathe fire.
Luke concentrated fully, continuously mobilizing his magic. He didn't know if a creature like a dragon could drown, so he could only persist without stopping, and sweat gradually appeared on his forehead.
Although he didn't experience running out of magic, activating magic was still mentally taxing and would make him feel tired.
Just as Luke's mental energy was starting to falter, a surge of warm energy flowed into his body, instantly dispelling his fatigue and rejuvenating his spirit.
It was Gandalf who acted. The Ring of Fire, narya, in his hand sparkled with brilliant light, continuously pouring its energy into Luke's body.
With the added power of the Ring of Fire, Luke's spell greatly increased in power. More and more lake water gathered together, completely enveloping the dragon, giving him no chance to break free.
As time passed, after an unknown duration, Smaug in the water sphere stopped struggling, motionless as if dead.
But Luke and Gandalf still dared not be careless.
The dragon's vitality was strong; if he could drown so easily, he wouldn't have become the embodiment of the terrifying disaster for the people of Middle-earth.
Indeed, seeing that Luke and Gandalf had not fallen for it, the dragon Smaug in the water sphere opened his cunning eyes again, filled with unwillingness and rage.