[They have two scalpels, Dirk lost his flashlight and has replaced it with only a matchbook, and the library's information may be hard to access. It means they probably have to kill the monsters to get much out of the place.]

Yeah. We should watch a little longer to see if we can see others. It might be good to try to check another window and get a better sense of the layout too. [It's a large monster, taller than the bookshelves, so they might be able to use the smaller spaces and their speed to their advantage.]

You can stay on this one while I check for another window? Then we try to go in quiet and stealthy. [If it's a scent-hunter, that could still be an issue, but maybe they don't like the smell of cthulhufrog vomit and antiseptics.

Also he wants to know if the windows could be smashed through for an emergency exit so he'll check out that too!]