These are titles that look pretty good, but that we don't own. If you aren't familiar with Interlibrary Loan (ILL), it's a service that the library provides in which we borrow the book (or get a pdf) from another library for you.
If you haven't yet registered for an ILLiad account, CLICK HERE.
This article isn't particularly relevant, but I thought it was really interesting and that you might enjoy it.
TIP: Use the index at the back of each book to find Gavroche.