At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
Harry Potter consulted a copy of this book while doing some fifth year Potions homework. Harry did not seem very interested in it, but pretended to peruse a page of it in order to marshal his thoughts after Hermione asked if he had thought anymore about her idea of him teaching D.A.D.A.
- Harry Potter and the Order of the Phoenix (First appearance)
- Pottermore (Mentioned only)
- Harry Potter: Hogwarts Mystery