At least some content in this article is derived from information featured in Harry Potter: Puzzles & Spells. Spoilers will be present within the article.
- "A useful addition to the library of any Defence Against the Dark Arts enthusiast."
This book is one of the hundreds of books that the Room of Requirement supplied for Dumbledore's Army in their first gathering there. Seeing this and other such books helped convince Hermione Granger that she and the others were doing the right thing by participating in the group.
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter: Puzzles & Spells