They dropped their voices as they entered the muffled stillness of the library. Madam Pince, the librarian, was a thin, irritable woman who looked like an underfed vulture.

--CoS 10: The Writing on the Wall

**

"WHAT DO YOU THINK YOU ARE DOING?"

"Oh damn," whispered Ginny, jumping to her feet. "I forgot —" Madam Pince was swooping down on them, her shriveled face contorted with rage.

"Chocolate in the library!" she screamed. "Out — out — OUT!" And whipping out her wand, she caused Harry's books, bag and ink bottle to chase him and Ginny from the library, whacking them repeatedly over the head as they ran.

--OotP 29: Chocolate in the Library

**

The Unbreakable Vow: Enjoying the fact that they could speak normally again, they made their way along the deserted lamp-lit corridors back to the common room, arguing whether or not Filch and Madam Pince were secretly in love with each other.

--HBP 15:

**

: . . . they found Madam Pince standing beside Filch, she in a thick black veil that fell to her knees, he in an ancient black suit and tie reeking of mothballs.

--HBP 30: The White Tomb