Harry gets an Invisibility cloak for Christmas from Dumbledore by Harry's Father.Later Harry sneaks into the library to find info on Nicholas Flamel but finds a screaming book and alerts Filch and Snape.Harry then hides in an abandon classroom and finds The Mirror of Erised, he sees his family and shows the mirror to Ron who sees himself as headboy and Quidditch captain.Harry is still thinking of the mirror and sees it the next night and Dumbledore tells Harry not to see the mirror again because Harry is obsessed with it.
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