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In the ''Harry Potter'' series created by J. K. Rowling, magic is depicted as a supernatural force that can be used to override the usual laws of nature. Many fictional magical creatures exist in the series, while ordinary creatures sometimes exhibit new magical properties in the novels' world. Objects, too, can be enhanced or imbued with magical property. The small percentage of humans who are able to perform magic are referred to as witches and wizards, in contrast to the non-magical muggles. In humans, magic or the lack thereof is an inborn attribute. It is inherited, carried on "dominant resilient genes". Magic is the norm in the children of magical couples and less common in those of muggles. Exceptions exist: those unable to do magic who are born to magical parents are known as squibs, whereas a witch or wizard born to muggle parents is known as a muggle-born, or by the derogatory term "mudblood". While muggle-borns are quite common, squibs are extremely rare. ==Using magic== For a person's ability to perform magic to be of use, much training is needed. When "wild", typically with young and untrained children, magic will still manifest itself subconsciously in moments of strong apprehension, fear or anger. Magic can manifest itself on occasions of sadness as well. For example, Harry Potter once made his hair grow back after a bad haircut; set a boa constrictor on his cousin Dudley at the London Zoo; and, in anger, made Aunt Marge inflate to an enormous size. While this reaction is usually uncontrollable, Tom Marvolo Riddle, later known as Lord Voldemort, was able to "make things move without touching them...make animals do what he wanted without training them...make bad things happen to people who annoy ()...or 'make them hurt if I () want() to'" when he was a young child, apparently intentionally.〔, chapter 13〕 In addition, Lily Potter was able to guide and control the blooming of a flower by wanting to. Almost all magic is done with the use of a supporting tool or focus, typically a wand. On the subject of magic without the use of a wand, Rowling says: Mark Williams, who played Arthur Weasley in the films, commented in the special ''50 Greatest Harry Potter Moments'', "If only I had a wand, and I could KILL people!" A wizard or witch is only at their best when using their own wand. Throughout the series, it is evident that when using another's wand, one's spells are not as strong as they normally would be. Ownership of a wand can transfer from one person to another if the original owner of the wand is forcibly disarmed (either magically or manually, as evident from Draco Malfoy's magical disarming of Dumbledore in ''Half-Blood Prince'' and Harry's manual disarming of Draco in ''Deathly Hallows''). Moreover, if a person has the allegiance of more than one wand, and one of them is forcibly taken away, the other wands that respond to this person will also change their allegiance (Harry's taking Draco's hawthorn wand in Malfoy Manor in ''Deathly Hallows'', leads to the Elder Wand also accepting Harry as its master: "Does the wand in your hand know that its last master was disarmed? Because if it does ... I am the true master of the Elder Wand.") Within the books, technical details of magic are obscure. Of Harry's lessons, only those involving magical creatures, potions or divination are given in any detail. Severus Snape once told Harry Potter that "Time and space matter in magic" during Harry's first Occlumency lesson in ''Harry Potter and the Order of the Phoenix'' and Albus Dumbledore told Harry after finding the magically concealed boat to reach the locket Horcrux that "Magic always leaves traces, sometimes very distinctive traces." 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Magic in Harry Potter」の詳細全文を読む スポンサード リンク
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