I checked out this book in Fond du Lac, can I return it here?

The Fond du Lac library is not part of the Winnefox Automated Library Services system, so we cannot check in items from that library, nor can Fond du Lac check in any items from other Winnefox Automated Library Services system libraries.

However, your library card does work at all Winnefox Automated Library Services system libraries, and you can return those items to any Winnefox Automated Library Services system library.