Alla böcker i det begränsade området finns med bra skäl.
Den här boken är därför att den skriker.
Observera att här är filmen samvetsgrant replikerande JKRs roman
He had to start somewhere. Setting the lamp down carefully on the
floor, he looked along the bottom shelf for an interesting looking
book. A large black and silver volume caught his eye. He pulled it out
with difficulty, because it was very heavy, and, balancing it on his
knee, let it fall open.
A piercing, bloodcurdling shriek split the silence -- the book was
screaming! Harry snapped it shut, but the shriek went on and on, one
high, unbroken, earsplitting note. He stumbled backward and knocked
over his lamp, which went out at once. Panicking, he heard footsteps
coming down the corridor outside -- stuffing the shrieking book back
on the shelf, he ran for it.
- Harry Potter och Philosopher's Stone, kapitel 12 (The Mirror of Erised)
Det finns också andra charmiga böcker i Harry Potters historier.
Som "Monster Monster Book"
"How do we open our books?" Malfoy repeated. He took out his copy of
The Monster Book of Monsters, which he had bound shut with a length of
rope. Other people took theirs out too; some, like Harry, had belted
their book shut; others had crammed them inside tight bags or clamped
them together with binder clips.
"Hasn' -- hasn' anyone bin able ter open their books?" said Hagrid,
looking crestfallen.
The class all shook their heads.
"Yeh've got ter stroke 'em," said Hagrid, as though this was the most
obvious thing in the world. "Look --"
He took Hermione's copy and ripped off the Spellotape that bound it.
The book tried to bite, but Hagrid ran a giant forefinger down its
spine, and the book shivered, and then fell open and lay quiet in his
hand.
"Oh, how silly we've all been!" Malfoy sneered. "We should have
stroked them! Why didn't we guess!"
- Harry Potter och Fångaren av Azkaban, Kapitel 6 (Talons och Tea Leaves)
Som @Bellatrix sa, verkar spell på böcker ganska vanligt, och fru Pince har varit känd för att använda alla slags stava på böckerna i hennes bibliotek.
Though I have removed the usual library book spells from this volume,
I cannot promise that every trace has gone. Madam Pince has been known
to add unusual jinxes to the books in her care. I myself doodled
absentmindedly on a copy of Theories of Transubstantial
Transfiguration last year and next moment found the book beating me
fiercely about the head. Please be careful how you treat this book. Do
not rip out the pages. Do not drop it in the bath. I cannot promise
that Madam Pince will not swoop down on you, wherever you are, and
demand a heavy fine.
- Quidditch genom åldrarna, Förord