Invisibility cloak

An Invisibility cloak is a magical garment which renders whatever it covers unseeable. They may be made from hair of Demiguise, a magical creature that possesses the power to become invisible. This property is used to make the wearer of the cloak invisible. However, as Xenophilius Lovegood tells Harry, Ron, and Hermione, such a cloak will gradually lose its effectiveness as the hair becomes more and more opaque. The cloak can also be formed from an ordinary traveling cloak, enchanted with an exceptionally strong disillusionment charm or a bedazzling hex.

There are ways of making one's self invisible by using magic other than invisibility cloaks. An example is the Disillusionment charm. Dumbledore has remarked to Harry that he didn't need a cloak to become invisible.

People who have used invisibility cloaks

 * Barty Crouch, Jr., while escaped from Azkaban prison, watched the Quidditch World Cup in 1994 while under an invisibility cloak.


 * Mundungus Fletcher was loaned an invisibility cloak by Mad-Eye Moody for Order of the Phoenix business. It is likely that Dung, as Fletcher is known, used the cloak for other purposes besides lining his pockets.


 * James Potter owned an invisibility cloak during his days at Hogwarts School of Witchcraft and Wizardry that he and his friends often used to assist them in their mischief. Albus Dumbledore had James's cloak at the time of James's death. He kept the cloak in his possession until Harry began school at Hogwarts.


 * Harry Potter used his father's cloak many times throughout the series. He received it from Albus Dumbledore anonymously in 1991.


 * Hermione Granger used Harry Potter's invisibility cloak.


 * Ron Weasley used Harry Potter's invisibility cloak.


 * Mad-Eye Moody lent Sturgis Podmore his best invisibility cloak in 1995 to assist in guarding The Prophecy in the Department of Mysteries. Moody mentioned that Podmore had not had the manners to return it in a timely fashion and forced Moody to use his second best cloak.  This was because Podmore had been discovered and arrested by Ministry officials.

The Invisibility Cloak of legend
The Tale of the Three Brothers, a wizarding legend, speaks of a cloak of invisibility which (shortly after Christmas 1997) Xenophilius characterizes as one which "endures eternally, giving constant and impenetrable concealment, no matter what spells are cast at it." This cloak of legend is actually the cloak that James Potter owned, later given to Harry Potter, because the Potters are in fact descendants of the youngest Peverell Brother, Ignotus Peverell.

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