Workers at a Mason County library received quite a shock when they opened a package mistakenly sent to them.

Workers at the Maysville Technical and Community College Library first noticed a hardback book that wasn't theirs.

But once they opened the book, the found some of the pages had been cut out to hide marijuana and a pornographic DVD.

Police think someone meant to send the package to a jail, but mistakenly wrote the library's address.

Investigators do not know who sent the package, but they think they know who was supposed to receive it.