I've checked our inventory and all of the selections Mr. Lewells has listed are currently available.
You will, however, need to procure them off the shelves yourself. Part of our librarian duty is vigilance, and for that, I will resume supervisory bookkeeping.
Returning with the material to Roy on his behalf will not mark yourself accountable for their return; as with his note you're serving as the book club's official courier. Their establishment shall carry that burden.