When the Headmaster of Hogwarts and the Boy of the Plague reappeared, Harry gulped in the cold night air, which was very humid and smelled of the sea.

After a few seconds, Harry came to his senses, and he opened his eyes to find that he and Dumbledore were standing in the same place, a tall black rock jutting out of the sea. At their feet, the water glowed with a cold white glow in the night, and the waves were raging, crashing fiercely against the black reef. The spray of the staggering, rolling waves of the sea soaked his hair and clothes.

Dumbledore's gaze fell on the cliff, and in the darkness, the steep cliff resembled a giant beast with its mouth wide open. Harry felt the cold splash of sea-smelling water splash on his face, and the cold made him shrunk his shoulders, and he looked at the cliff with goosebumps on his body.

"You don't mind getting wet, do you? ”

"It's okay, Professor, I studied well when I was in the Goblet of Fire. Harry added a bubble charm to himself.

"I didn't bring Fox, but let's take a risk. Dumbledore suddenly became as agile as a young man, and he slid gently from the pebble into the water, swimming towards the dark crack in the rock's surface. He held his wand in his mouth and adopted the perfect breaststroke position.

Harry quickly jumped into the water and swam to follow.

The sea is very cold. Harry's clothes were soaked with water, and they became swollen and heavy, dragging him straight down. He took a few deep breaths, and could smell the pungent smell of salt and seaweed through the bubble head charm, and he struggled to find the flickering light that was moving deeper into the cliff, getting smaller and smaller.

Soon, the crack turned into a dark tunnel, and Harry could tell that the tunnel would be filled with sea water at high tide. The slimey-stained rock walls were only three feet apart, shimmering like tar in the flash of Dumbledore's wand. A little further in, the tunnel turned to the left, and Harry saw it reaching the deepest part of the cliff. He continued to swim with Dumbledore, his frozen numb fingers brushing against the rough, damp rock.

Then, he saw Dumbledore in front of him rise from the water, his silver-white hair and black robes glistening with water. Harry swam there and found steps leading to a large cavern. He struggled up the steps, water gurgling down his soaked clothes. He finally stepped out of the water, the air around him was silent and cold, and he shivered uncontrollably.

"Fluorescent flickering. Dumbledore raised his wand, and a sparkling golden light illuminated the space around them. In the cold and darkness, they struggled into the deepest part of the cliff, down the steps to a large cavern, and the air around them was silent and cold.

"No, someone has tried magic here. Dumbledore held his wand and ran his fingers over the rough, damp rocks.

Harry didn't know if he was shivering because the cold had invaded his bone marrow, or if he was aware of the spell as well. He watched as Dumbledore continued to slowly spin in place, apparently concentrating on something Harry couldn't see.

"Harry, I'm sorry I forgot. Dumbledore pointed his wand at Harry, and red-yellow flames erupted from the tip of his wand, and Harry's clothes immediately became dry and warm, as if they had been baked in front of a blazing fire," said a warming charm popular on Durmstrand's side. ”

Before Harry could say his words of gratitude, he noticed that the wand in Dumbledore's hand that had not yet been withdrawn was gradually shortening into a silver dagger, and he calmly swung the knife and slashed his palm.

"Professor!" exclaimed Harry.

"If you want to find the entrance, you have to pay a price, a price that can weaken the comer. ”

Harry opened his lips, it was too late to say, but he couldn't help but say, "You should let me come, Professor." ”

"No, Harry, your blood is much more precious than mine. Dumbledore smeared his slitted palm against the surface of the rock, and shiny dark red beads of blood covered the rock surface.

The stones on the blood-soaked rocks shook off, and the scattered stones piled up on the ground in a disorderly manner, revealing a doorway.

"Voldemort doesn't make it easy for people to find out where he hides his soul. Dumbledore pulled on his robes and walked over the scattered stones, both his and Harry's wands glowing, "He'll be on guard, be careful." ”

Dumbledore stopped Harry, and in front of them was the incomparably wide black lake, Dumbledore raised his arm, and flicked his wand upward, and the bright light flew out of the tip of the wand, flying farther and farther away, landing on the platform in the middle of the lake.

"The question is how do we get there? We can't ...... Can't we give it a try?" Harry's gaze rolled around, he knew it must be a stupid suggestion.

Dumbledore didn't reply, his foot stepped down, and the toe of his shoe, with its copper buckle, moved to the outermost point of the rocky edge of the lake. He held his wand in his right hand, and his left hand stretched out his five fingers outstretched, as if pulling something out of thin air. There was no wind in the cave, but his sleeves were shaking.

Harry took two steps forward, and the lake bubbled like boiling water. A thick green copper chain suddenly emerged from the depths of the lake and scurried towards Dumbledore's palm, and Dumbledore grabbed it.

"Do Harry a favor. Dumbledore handed the chain to Harry, who quickly put his wand in his trouser pocket and pulled it back with both hands.

As he tugged, the tink-dong chain slammed into the rock wall with a loud echo, and the copper chain dragged a white boat up from the bottom of the dark lake. The small boat with the bow of the serpentine relief floated like a slightly upturned leaf towards the shore of the lake, approaching them slowly with barely a ripple.

"Professor, how did you do that?" asked Harry, surprised.

"Magic always leaves a trace," Dumbledore said, and with a soft thud, the boat crashed into the shore, "sometimes very noticeable marks." I've taught Tom Riddle and know his style. ”

Dumbledore frowned, his gaze resting on the chain, "Harry, be careful. Stay on your guard, there are handprints on the moss of the chain, it seems that someone has been dragging it recently. ”

Harry tightened his wand in vigilance, but nothing happened, and Harry looked down at the boat. It's a very small boat, indeed: "It doesn't seem to be for two people, can it eat the weight of both of us?"

"Tom doesn't take into account the physical weight, he only thinks about how much magical power crosses his lake. I think the ship may have been enchanted to carry only one wizard at a time. ”

"What ......?"

"I don't think you'll be counted, Harry, you're not old enough to qualify. Tom would never have imagined that a sixteen-year-old could come to this place. I think your strength is negligible compared to my strength. ”

Harry was dejected by this, and Dumbledore probably realized it, adding, "Tom is wrong, Harry, Tom is wrong...... It is stupid and forgetful for the elderly to underestimate the young...... Okay, this time you go up first, be careful not to touch the water. ”

The two men boarded the boat, forced to huddle tightly together because of the small space, but floated all the way to the platform in the middle of the lake without waves. Dumbledore stepped ashore first, followed by Harry.

Harry glared as Dumbledore reached for the stone basin, trying to touch the liquid. But there was an invisible resistance, his hand could not approach the liquid, and no matter how hard his hand tried to reach down, his fingers seemed to touch the hard, indestructible air.

"Do you think the Horcrux is inside, Professor?" Harry watched as Dumbledore's wand slowly brushed over the liquid in the crystal basin, which bubbled up and calmed down as his wand left.

Dumbledore frowned and sniffed with his nose, as if he smelled something strange, but then stared intently at the changes in the potions in the stone basin, and then he raised his head, "I can't put my hand in it, I can't separate it, scoop it dry, or drain it, I can't make it disappear with an vanishing charm, I can't deform it with magic, or change its properties in some other way—I must drink it all, all of it." ”

"What?" said Harry, "no! but what if...... What if it poisons you!"

"Oh, I'm sure it won't work like that... Voldemort wouldn't want to poison anyone who came to this island." Dumbledore's expression became solemn after he finished speaking easily, and he looked into Harry's eyes, "Do you remember what you promised me before you came? This potion may paralyze me, it may make me forget the purpose of my visit, it may make me unable to drink in pain, and anything else may happen, but you must not obey me Harry, your responsibility is to make sure I drink all the potion, even if I open my mouth and force it down, understand?"

"Why can't I drink it, Professor?" Harry couldn't believe it, was Dumbledore so ridiculously trying to get people in mind? he didn't think he could let Dumbledore take the risk.

"Because I'm older, more coping, and not as important as you. Dumbledore's hand grasped the shell-shaped spoon placed on the crystal basin and scooped out a spoonful of potion, "You have to live well now, Harry. ”