[He looks every bit horrified for a brief second at the mentioning of burning a book. Pressing his lips together, he clears his throat and ducks his head.]

Yes. I would much prefer you to stay in one piece but... but do try not to do such a thing to the books.

[Taking a deep breath, he lightly rubs at his forehead.] Those.. are the shadows that leak from different... books. You can actually eat some of the monsters lingering in the library. Some... it is best to kill them and let them lie.