Lost in the mysterious woods of the Unknown, two brothers named Wirt and Gregory run into a jaded old woodsman who warns them to beware the terrifying Beast that roams the dark forest.

We join Wirt and Greg on a lighthearted romp aboard the Frogland Ferry as they approach Adelaide of the Pasture. But why is Beatrice acting so glum? Things turn emotional for Greg as well when he realizes that his own frog may be better off living with his amphibian compatriots.

The Beast has come. The final chapter begins.