Broken Balls: When Fortunes turn Foul is a book about divination. It is a book that is supplied by the teacher Of Divination instead of the pupil having to purchase it due to the high cost of over 15 Galleons. It is one of the few books on Divination that Hermione Granger had read before she was 'insulted' by Sybill Trelawney. Trelawny is rather fond of using this book in lessons to 'open the minds' of her students.

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