Emerald Potion

The **Emerald Potion**, also known as the **Drink of Despair**, is a mysterious potion which induces fear, delirium, and extreme thirst. According to Dumbledore, the potion cannot be penetrated by hand, vanished parted, scooped up, siphoned away, Transfigured, Charmed, or otherwise made to change its nature in any way. It can only be drained away by drinking. As such, this potion is meant for protecting something of extreme importance. As the potion typically does not kill the victim, it nonetheless makes them very weak and vulnerable. As such, for a more complete security, something else should be there to be prepared to attack the victim once they finish drinking the potion.

Lord Voldemort used this potion as part of the defences to protect one of his Horcruxes, Salazar Slytherin's Locket, within The Cave. As one person would not be able to drink the entire contents without collapsing from the terrible effects, a second person would be required to force feed the potion, which Voldemort considered impossible due to the enchanted boat leading to the cave being designed to carry only one adult Wizard. This particular defence was able to be breached on a small number of circumstances through using underage wizards or magical creatures such as house elves, presumably because Voldemort underestimated them.

## History

After he had turned Slytherin's locket into a Horcrux, Lord Voldemort decided to use an isolated cave as a secure hiding place. The critical part of this security was a special potion that was apparently of his own creation. A stone basin existed in the middle of the subterranean lake, and the locket was placed inside at which point it was then immersed in the potion. In order to test the effectiveness of the defences placed around the locket, Voldemort asked his Death Eaters to let him use a house elf. One of them, Regulus Black, volunteered, and ordered his house-elf, Kreacher, to obey Voldemort's instructions and when finished to come back to 12 Grimmauld Place.

Voldemort tested all of the defences, including the potion. As Voldemort had hoped, the potion incapacitated Kreacher, who he left behind to die. However, Voldemort did not realise that his security measures would not prevent a house-elf from Disapparating, as he failed to understand that house-elves would have powers that wizards did not. Thus Kreacher was able to return home and report the secrets of the cave to Regulus Black.

### First attempt on the locket

Regulus was infuriated by Voldemort's treatment of Kreacher and decided to sabotage Voldemort's quest for immortality. He had worked out, from various subtle hints, that Voldemort had created a Horcrux, something that deeply frightened Regulus. He did not tell anyone about this — not even Kreacher — in order to help ensure the safety of his family. He asked Kreacher to take him to the cave and then drank the potion himself, allowing Kreacher to swap the Horcrux for another locket. Regulus had ordered Kreacher to leave him in the cave, destroy the locket, and to never tell his family what had happened. Kreacher was not able to destroy the locket, despite many attempts, and the original locket remained at 12 Grimmauld Place until it was stolen by Mundungus Fletcher.

### Second attempt on the locket

Albus Dumbledore had realised that Tom Riddle had likely created several Horcruxes, and began a quest to find where they were hidden. One story he investigated was from Tom Riddle's days in his orphanage, where he had terrified two of his fellow orphans during a visit to the coast. As part of this investigation, he discovered an area that had been altered by powerful magic. On the 30th of June, 1997, Dumbledore and Harry Potter set off to the cave to obtain the Horcrux. After penetrating the outer defences, Harry and Dumbledore arrived at the island and discovered that the Horcrux was immersed in a glowing, green, potion. After determining that the potion could only be removed if it was drunk, Dumbledore conjured a goblet and began to drink the potion.

Dumbledore started drinking, and it took three cups of the potion before he was noticeably affected. The first symptom of the potion was pain. Then, much like a dementor, it apparently made the drinker relive his worst memories. Finally, it caused intense thirst. Since the cave would cause any water that was conjured to immediately disappear, this would cause the individual to drink from the lake, which in turn would wake the Inferi, who would drag the individual into the lake to drown. Harry and Dumbledore were able to escape after Dumbledore conjured a lasso of fire, as Inferi — like all dark creatures — feared fire, light, and heat.

## Description

The potion has an emerald green colour to it, and glows phosphorescently. As such, a green glow can be seen from the basin on the island in the middle of the lake as far away as the far end of the cave. While Dumbledore declared that the potion's nature could not be changed in any way, Lord Voldemort was able to turn the potion "crystal clear" in one occasion to check the locket, most likely because he alone knew how to alter the potion's characteristics.

## Effects

> "*Kreacher drank, and as he drank, he saw terrible things... Kreacher's insides burned... Kreacher cried for Master Regulus to save him, he cried for his Mistress Black, but the Dark Lord only laughed... He made Kreacher drink all the potion... He dropped a locket into the empty basin... He filled it with more potion...*"
> ― Kreacher describing when Voldemort forced him to test the potion's defences.[source]
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While its effects are not completely known, it acts both like a poison and an antidote. The potion would seem to cause the drinker intense pain (described as a burning sensation in the insides), followed by forcing them to experience terrible things, most likely their worst memories and fears, followed finally by extreme thirst after drinking the last of it. However, Albus Dumbledore noted that the potion's effect could not be fatal, as Voldemort would not want to immediately kill anyone who discovered the cave and the horcrux within it until he had the time and opportunity to learn how they had discovered its existence in the first place.

Dumbledore's screams of *"kill me"* could either indicate a resurfacing of the memory of his sister's death (as in, *"kill me instead"*) or a request to be delivered from the intense physical pain he was experiencing, or both. In 1998, while telling Aberforth Dumbledore about what happened when his brother drank the potion, Harry mentions that he believed that Dumbledore was reliving the 3-way duel that broke out amongst them and Grindelwald that resulted in their sister Ariana's death. This was something that Dumbledore felt guilty about for the whole of his life after the event. While it was likely that this was what Dumbledore was seeing this duel and his sister's death, he did not mention out loud either event while he was drinking the potion.