A clever new theory asserts that J.K. Rowling had already given away the clue to Dumbledore’s death in the third Harry Potter book, years before he was finally killed off in the sixth.
Dumbledore, the headmaster of Hogwarts, was murdered by Severus Snape at the end of Harry Potter and the Half Blood Prince.
The theory says that a prophesy by professor Trelawney, who teaches divination, clearly foretells the death of Dumbledore.

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