Khác biệt giữa bản sửa đổi của “Muggles' Guide to Harry Potter/Magic/Portkey”

Portkeys appeared in [[Muggles' Guide to Harry Potter/Books/Goblet of Fire|''Harry Potter and the Goblet of Fire'']] first as a means of getting to a major event, specifically the [[Muggles' Guide to Harry Potter/Major Events/Quidditch World Cup|Quidditch World Cup]], where it was used to transport those members of the Weasley family and those members of the Diggory family who were unable to [[Muggles' Guide to Harry Potter/Magic/ApparationApparition|Apparate]]. It was later used to transport those same individuals back home. In this section, we learned that Portkeys would typically be unobtrusive items that would activate at a specific time, transporting all who were directly in physical contact with them to a specific other point.

When Dumbledore uses the [[Muggles' Guide to Harry Potter/Magic/Portus|Portus]] charm to create a Portkey in front of [[Muggles' Guide to Harry Potter/Characters/Cornelius Fudge|Cornelius Fudge]] in the Ministry for Magic, Fudge, then Minister for Magic, seems shocked that Dumbledore would so lightly create an "unauthorized Portkey". It appears that, because of their ability to deposit a person within areas that are protected from incursion (recall that both Hogwarts and 12 Grimmauld Place are protected by being made unmappable and by having spells to prevent [[Muggles' Guide to Harry Potter/Magic/ApparationApparition|ApparationApparition]]), creation of Portkeys is controlled by the [[Muggles' Guide to Harry Potter/Magic/Ministry of Magic|Ministry]].

ApparationApparition requires a firm knowledge of the destination to which you will be going; one must assume that creation of a Portkey requires at least that same understanding of the destination, probably even more. It is certain that the two Portkeys that Dumbledore creates are for destinations with which he is extremely familiar. It is interesting that, rather than create another Portkey for himself, Dumbledore returns to Hogwarts by way of the [[Muggles' Guide to Harry Potter/Magic/Floo Network|Floo Network]], especially since Hogwarts attachment to the Floo network is supposed to be somewhat thin.

In [[Muggles' Guide to Harry Potter/Books/Deathly Hallows/Chapter 4|''Harry Potter and the Deathly Hallows'']], [[Muggles' Guide to Harry Potter/Characters/Alastor Moody|Mad-Eye Moody]] tells Harry that the area around [[Muggles' Guide to Harry Potter/Places/Privet Drive|Privet Drive]] is being monitored for use of the Floo Network, ApparationApparition, and use of Portkeys, ostensibly for Harry's protection, but actually to monitor where he is taken if he leaves there. From this, we may gather that Portkey use can be monitored if not prevented.