As explained in the 3rd book, Dementors cannot see at all. They recognise the presence of people by sensing their emotions. An invisibility cloak makes the wearer only invisible, but doesn't block their thoughts or emotions. So, these cloaks are useless against Dementors.
It's possible that Moody's eye functions the same way as the spell (or probably more, as he was specifically able to tell it was Harry, not just detect human presence). Harry's invisibility cloak was rumoured to be from Death himself and even Death could not look through it.
From the above, we believe that an Invisibility Cloak will completely shield the user from anyone else's eyes. The few exceptions that we have noted are Moody's magical eye, and those artifacts and creatures that use something other than eyes to perceive the individual.
In a chat with fans on the-leaky-cauldron.org, J. K. Rowling answered a fan's question of why Albus Dumbledore was sometimes able to see Harry under the Cloak of Invisibility, explaining that he used the Human-presence-revealing spell with non-verbal magic.
However it seems that Dumbledore eventually disclosed the cloak to Snape and possibly other teachers, as Snape knew Harry was in possession of the cloak in Prisoner of Azkaban, when Malfoy reported the apparent apparition of Harry's floating head outside the Shrieking Shack, which Snape immediately understood to be ...
Dumbledore knew Harry and Ron were under the invisibility cloak at Hagrid's hut in Harry Potter and the Chamber of Secrets, as his eyes flickered in their direction.
Voldemort Never Figured Out Snape Was A Spy
He openly despised some of his Death Eaters, even the loyal ones like Luscious Malfoy.
Harry owns the three Hallows when he dies
She manages to give Harry all three Hallows at the time of his death as a way to symbolise his journey. It makes explicit the moral of the book.
Professor Dumbledore could understand it
As J.K Rowling revealed, Albus Dumbledore had mastered Parseltongue too – although he could not speak it aloud. We're not sure why Albus learnt the language, but perhaps the Hogwarts headmaster wanted a better understanding of Voldemort.
At different points, Dumbledore possessed all three Deathly Hallows. He won the Elder Wand from Grindelwald, had the Invisibility Cloak in his possession when James Potter died, and wore the Resurrection Stone as it sat in Marvolo Gaunt's ring.
Argus Filch is a Squib, a child of wizard parents who has the inability to use magic.
Stealing the cloak would have been evidence against him. The cloak is highly unusual, Dumbledore and Snape know it belongs to Harry. If and when Harry was found, he could have accused Draco and proven the charges easily. Draco would get detention if not suspension.
Yup, that's right: when the Death Eaters killed Mad-Eye, and then took over the Ministry, they apparently gave Mad-Eye's "mad eye" to Umbridge. Who then installed it in her door to use as a way of spying on her fellow wizards.
Yes, there are multiple invisibility cloaks in the Harry Potter universe. However, Harry's Invisibility Cloak is unique and distinct from the others. Regular invisibility cloaks are made using magical materials like Demiguise hair and can wear off or become less effective over time.
Originally Answered: How did Dumbledore and Hargrid know that Ron and Harry were in Hagrid's place if they used Invisibility Cloak? Dumbledore found out by using the "homenum revelio" charm. non-verbally, to find out if there was someone there or not.
The rare and valuable Invisibility Cloak, which makes the wearer invisible, represents the necessity of breaking the rules in order to do what is right. The Cloak belonged to Harry's father, James, but then came into Dumbledore's possession after James died, and Dumbledore is the one who anonymously gifts it to Harry.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
Salazar Slytherin was a descendant of Herpo the Foul, which is where he would have gotten his Parseltongue abilities. I believe Slytherin was the first “famous” descendant of Herpo, so he would be one of the first Parselmouths we'd know of since this ability wasn't widespread at that point in Wizarding history.
A rare language spoken by a small number of wizards allowing them to communicate with snakes, the ability to speak Parseltongue was usually inherited with the majority of speakers descended directly from Salazar Slytherin.
Draco had several reasons for lying to Bellatrix, including the fact that he was never a bad person. Moreover, he no longer found working for the Dark Lord appealing and hated how Voldemort treated his family. He did not intend to harm anyone and believed Harry was the only person capable of defeating Voldemort.
Author JK Rowling announced Albus Dumbledore was gay in 2007. It's known that he and Grindelwald were in a romantic relationship but it had never been explored in the previous Harry Potter films. Fantastic Beasts 3 might address the depth of their relationship.
Kendra Dumbledore
Not only did her husband end up being incarcerated in Azkaban, but the whole family had to move from Mould-On-The-Wold, to Godric's Hollow to try and protect her youngest.
Defeating The Dark Lord with his signature spell
Disarming is about defence, not murder. Voldemort was a killer, Harry was not. It was an important distinction for Harry, who had learned so much about Voldemort and seen first-hand the ways in which they were similar.
Quirrell didn't use the Killing Curse on Harry, because Voldemort said “use the boy” to get the Sorcerer's stone from the Mirror of Erised.
He was a double agent, so many character details were kept a secret. His mother was a witch and his father was a Muggle, leading to the moniker "The Half-Blood Prince."