I did have a nice, if brief, chat with a patron who was sitting by the employee entrance (well, in this case, egress). He pointed out to me the old library building across the street, and I thank him for that.
More info? Go to http://www.petoskeylibrary.org/. Compared to the pictures there, mine serve simply to document that I was, indeed, there.
This walking labyrinth is part of the library grounds.
This is the old library building across the street.
Approaching from the side. The fence surrounds a reading garden.