The Cave

Dumbledore and Harry Arrive at the Cliffside
Harry and Dumbledore arrive at the cliffside near the sea where Lord Voldemort once brought children from his orphanage. The location is harsh, with waves crashing against jagged rocks. Dumbledore explains that no Muggles can reach the spot due to dangerous waters and treacherous cliffs. They prepare to descend to the water's edge to access the cave.
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Dumbledore and Harry Climb Down to the Sea
Dumbledore leads Harry to the water's edge by carefully descending slippery rocks. Dumbledore, despite his injured hand, moves with caution but agility. Harry follows, navigating the steep descent toward the sea, where they are sprayed with icy water.
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Harry and Dumbledore Swim into the Cave
Dumbledore instructs Harry to remove his Invisibility Cloak and they both plunge into the icy sea, swimming toward a fissure in the rock face. The swim is challenging, with cold water and slimy rock walls. They pass through a narrow, dark tunnel that eventually opens into a large cave.
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Dumbledore Senses Lord Voldemort's Magic in the Cave
Upon emerging from the water, Harry and Dumbledore enter the cold, dark cave. Dumbledore, using his wand and his magical intuition, senses that Lord Voldemort's magic has left its traces in the cave. He deduces that they are in the outer chamber and that they must penetrate further to reach the Horcrux.
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Dumbledore Finds the Hidden Entrance in the Cave
Dumbledore examines the walls of the cave by running his hands over them and speaking in a strange language. After carefully searching, he locates a concealed entrance that requires blood to open. He cuts his own arm, spilling blood onto the wall, which causes the entrance to reveal itself as a glowing archway.
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Dumbledore and Harry Enter the Great Black Lake Chamber
The glowing archway opens into a vast underground chamber with a large black lake. The lake's surface is eerily still, and there is a strange green glow emanating from the center. Dumbledore warns Harry to stay away from the water as they begin walking along the narrow path by the lake's edge.
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Harry's Failed Summoning Charm Disturbs the Water
Harry suggests using a Summoning Charm to retrieve the Horcrux from the center of the lake. Dumbledore allows him to try. However, instead of summoning the Horcrux, Harry's spell disturbs something lurking in the water. A large, pale figure momentarily surfaces and then vanishes. Dumbledore explains that these are Inferi.
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Dumbledore Finds Lord Voldemort's Boat Hidden by Magic
Dumbledore uses his magical knowledge to locate an invisible chain at the water's edge. He pulls the chain, summoning a small boat that Lord Voldemort had hidden to cross the lake. Dumbledore explains that the boat was designed to allow Lord Voldemort or someone powerful enough to retrieve the Horcrux, while likely preventing others from doing so.
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Dumbledore and Harry Cross the Lake in Lord Voldemort's Boat
Harry and Dumbledore board the small boat, and it begins to move silently across the lake. As they travel, Harry sees pale hands and faces just beneath the surface of the water—more Inferi lying in wait. Dumbledore reassures Harry that the Inferi will only act when they try to retrieve the Horcrux.
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Dumbledore Identifies the Potion Barrier
Harry and Dumbledore reach a small island in the center of the lake. They find a stone basin filled with a glowing green potion. Dumbledore concludes that the Horcrux is hidden at the bottom of the basin and that the only way to retrieve it is to drink the potion.
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Dumbledore Begins Drinking the Potion
Dumbledore begins drinking the potion from the basin, knowing it may incapacitate him or cause great pain. He instructs Harry to make sure he finishes the potion, no matter how much he protests. Dumbledore drinks several goblets full before collapsing against the basin in agony, while Harry tries to encourage him to continue.
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Dumbledore Suffers in Agony as Harry Forces Him to Continue
Dumbledore begins to hallucinate and beg for mercy as the potion's effects take hold. Harry, though horrified, follows Dumbledore's instructions and forces him to continue drinking. Dumbledore experiences extreme physical and mental anguish, pleading for death, but Harry pushes him to finish the potion.
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The Inferi Attack as Harry Tries to Fetch Water
After Dumbledore finishes the potion, he begs for water. Harry attempts to use magic to fill a goblet with water, but every time he tries, the water vanishes. Desperate, Harry fetches water from the lake itself, which triggers an Inferi attack. The creatures rise from the lake and begin dragging Harry toward the water.
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Dumbledore Summons Fire to Defeat the Inferi
Just as Harry is about to be dragged into the lake by the Inferi, Dumbledore recovers enough to summon a massive ring of fire. The fire drives the Inferi back, preventing them from reaching Harry or pulling him into the water. Dumbledore's powerful magic encircles them as they retreat to the boat.
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Harry and Dumbledore Escape the Cave
After collecting the Horcrux, Harry helps a severely weakened Dumbledore back to the boat. They cross the lake once more and return to the outer cave. Dumbledore praises Harry's bravery and resourcefulness as they make their way out, with Harry supporting most of Dumbledore's weight.
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Harry Opens the Exit to the Cave with Blood
At the exit of the cave, Harry realizes that they must once again use blood to open the archway. Dumbledore is too weak to cut himself, so Harry uses his own blood to open the archway, allowing them to leave the cave and return to the sea.
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Harry and Dumbledore Swim Out of the Cave
Harry, supporting a weakened Dumbledore, helps him back into the water as they swim out of the cave. The water is freezing, but Harry reassures Dumbledore that they are almost free. Dumbledore, though exhausted, expresses his trust in Harry as they swim through the narrow tunnel back to the cliffside.
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Harry Prepares to Apparate Them Both Back to Hogwarts
As they emerge from the water and reach the cliffside, Harry is determined to Apparate both himself and Dumbledore back to Hogwarts, even though he is nervous about performing side-along Apparition. He expresses his worry about Dumbledore's condition, but Dumbledore insists that he is not afraid because he is with Harry.
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