First of all i will go to the liberian and ask her about the book and then go to the class teacher and tell him/her all the story and ask the teacher what to do .by the way it was the mistake of the student who has issue the book and not take care about the book
" I would take the class monitor to the class teacher and I would describe the whole story from the first so that teacher can understand the problem that is been facing by us. I would then go to the librarian and I would even tell him the same and tell him to excuse us and I and the monitor together will pay the fine amount to the librarian for the misplacement of the book by the monitor and even by myself "
hope so my answer is useful and mark as best if possible...........^_^