This cache is not at the posted coordinates which represent a bookstore that used to be. Fortunately, the libraries still remain. BYOP.
You can find any number of things at the library. I wonder if you can find books by these authors? If you take a second perhaps you can find the library by these books.
Tom McKenney
Hiroko Quackenbush
Sylvio Gravel
Thomas Froncek
MaryKay Mullally
Jodi Picoult
Philip Caputo
You can validate your puzzle solution with certitude.
Gur Qrpvzny Flfgrz? Creuncf abg. Gnxr n frpbaq gb erguvax.