[Alneyan]

1) I will let you volunteer to ask them for money then. They should give you some gold for that little incident with Detect Magic, at the very least.
2) Nothing specifically states we may not kill the bandits (we have been allowed to destroy them), and we should assume they are to be killed if they prove to be a threat to the success of our main objective. The book should be safe enough; the carter, however, will have to be protected, and we cannot allow them to run after us. One way or another, they will have to remain in their hideout once we make our run towards the town.
3) Indeed. However, this "snatching away an individual" does seem to cross the librarians, as you have surely noticed. If the librarians themselves are annoyed, I would expect the whole city to be affected. Killing them would prevent such happenings from ever occurring again, ergo bettering the lives of the inhabitants of the little town.
4) Can we not even kill one or two of them, just to keep our good habits?
5) Wisdom 12, 4 ranks in Sense Motive. Roll your Bluff check! (Of course, Narf would have to set the DC for this action) Alternatively, merely going out with Dieger for a nice stroll at night would work equally as well; we would hate to disturb you while you are singing after all. *Smirks*