Xylomancy is a guide to divination by using twigs, written by Selina Sapworthy (Pm).

This book is found in the Hogwarts library (Pm).

On the old Pottermore website, Xylomancy is a book that could be found on a shelf in Professor Trelawney's classroom in Harry Potter and the Prisoner of Azkaban, Chapter 6, Moment 2.

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Tags: future guides predictions twigs

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