During the 1991–1992 school year, Lord Voldemort used unicorn blood to sustain his life, until he could steal the Philosopher's Stone in order to regain his true body. As he was possessing Quirinus Quirrell and inhabiting his body at the time, Quirrell drank the blood on Voldemort's behalf.
Why did Voldemort drink unicorn blood if he had Horcruxes?
Voldemort's desire to beat death and become immortal was also why he and Quirrell ended up slaying innocent unicorns. Drinking the blood of a unicorn would keep someone alive – even if they were an inch from death. However, it is considered an act of evil to kill something so pure.
Was Voldemort in the forest drinking unicorn blood?
On his way back, Harry learns that the cloaked figure was Voldemort and that he was drinking unicorn blood to sustain himself until he could obtain the Sorcerer's Stone.
However, Voldemort, after finding out that he taught at Hogwarts, took over his body, subsequently turning him into a temporary Horcrux, though Quirrell put up some feeble resistance. He died in vain while trying to murder Harry Potter in the Underground Chambers.
Does unicorn blood make you immortal in Harry Potter?
Unicorn blood had the power to save a drinker from death, even when they were an inch away from it. This made it similar to the Elixir of Life, which also extended the life of the drinker.
Why Voldemort Drank UNICORN BLOOD - Harry Potter Explained
What happened to Voldemort after drinking unicorn blood?
Ever since Voldemort drank the unicorn blood through Quirrel, his life was cursed essentially. First, Quirrel dies and Voldemort doesn't get the Stone. Then, his first horcrux and the basilisk is destroyed. Next, he got back a servant who was beholden to his mortal enemy and who he probably didn't trust.
However, this is because most Horcrux containers are inanimate objects, not living things. If a living thing were a container for a Horcrux, killing the person or animal would also destroy the Horcrux, since no magic can bring dead people back to life. So, Harry was still able to die in regular ways.
He explains also that Quirrell could not touch Harry because Harry was protected by his mother's love. Dumbledore also reveals that it was he who left the invisibility cloak for Harry and explains that there was enmity between Snape and Harry's father, much like the enmity between Malfoy and Harry.
Snape's explanation to the Death Eaters was that he knew nothing of Voldemort's involvement, but "saw only greedy and unworthy Quirrell attempting to steal the stone." It was confirmed in Deathly Hallows that Snape had been "keeping an eye" on Quirrell on Dumbledore's orders.
Presumably purchasing or inheriting her wand at the age of eleven, Sybill attended Hogwarts School of Witchcraft and Wizardry, which she referred to as her 'home'. Being Sorted into Ravenclaw by 1973 at the latest, she may have been a member of the Slug Club because of her ancestry.
Norbert is a Norwegian Ridgeback dragon that Hagrid had acquired as an egg from a mysterious, hooded stranger in the Hog's Head, who turned out to be Professor Quirrell. Hagrid helps the dragon hatch from the egg. Norbert becomes very dangerous and much bigger in the weeks following.
The prevailing theory has been that Voldemort gradually lost his nose (and humanity) throughout his life due to his exclusive use of Dark Magic. The more Dark Magic he tapped into, the less human he became both figuratively and literally. This was only amplified as he split his soul to create the Horcruxes.
Did the centaurs know Voldemort was in the forest?
In 1991, the colony was disturbed by the arrival of Lord Voldemort in the Forest when he, through Quirinus Quirrell, was stalking and killing unicorns. Although the other centaurs were unwilling to act against this, Firenze rescued Harry Potter from Quirrell while he was serving detention in the Forest.
Why did Death Eaters follow Voldemort if he was a half blood?
The Death Eaters devoted themselves to Lord Voldemort. They believed that their leader was immortal and would amend the Wizarding World with his extreme Pure-Blooded ideology. Voldemort believed in the supremacy of Pure-Blooded wizards and took a bigoted hatred towards Muggle-Borns and Half-Bloods.
Why was Voldemort obsessed with pure blood when he was half blood?
Voldemort's obsession with blood purity signifies his aim to rid the wizarding world of Muggle (non-magical) heritage and to conquer both worlds, Muggle and wizarding, to achieve pure-blood dominance.
Why was Dumbledore happy Voldemort used Harry's blood?
In Harry Potter and the Deathly Hallows, Dumbledore reveals that this had been the Dark Lord's gravest mistake. By using Harry's blood, he took Lily's sacrifice within himself, providing Harry with a tether to life. Harry could not die while Voldemort lived.
Did Snape know Harry was under the invisibility cloak?
Dumbledore was doing James a favour by helping him pass down the Invisibility Cloak to his son Harry. Snape definitely knew because in book 4 when Harry sees crouch in Snapes office, he's in his invisibility cloak. As soon as snape sees the golden egg and the map he says 'potters here' to mad eye. Potters here.
With the return of his Death Eaters at the end of Book Four, Voldemort declared that Snape had left their ranks forever. Conversely, Dumbledore went on declaring his undying trust in Snape. So Dumbledore was no more wrong than was Voldemort.
JKR, through Bellatrix managed to cover most questions that could make Voldemort distrust Snape much, much earlier. To answer yours in particular, He did not know it was in fact, the Dark Lord and not Quirrell who was trying to steal the stone.
After attempting to murder Harry as a baby, Voldemort was left without a physical form and was severely weakened. Voldemort was forced to flee to Albania to avoid anyone trying to hunt him down and had to possess animals to keep a physical form.
Professor Quirrell was a temporary type of Horcrux while Voldemort inhabited his body, which is confirmed in the Wizarding World. It is possible that Voldemort created more temporary Horcruxes, such as the animals he possessed while in ghostly form.
Dumbledore knew about Horcruxes. He knew how they were formed, what happened after that, etc. He probably got to know Harry was a Horcrux when he saw the Scar on Harry's forehead, but maybe he wasn't sure.
Why didn t Voldemort make a Horcrux every time he killed someone?
It was stated at one point that Voldemort had already "pushed his soul to the limit" in creating his multiple Horcruxes. This implied a finite number of Horcruxes any one person may create before the process became too dangerous to attempt again.
