A year ago, Peter let Pax, his beloved pet fox, go forever. He decided that the fox would be better off in the wild. Maybe so: Pax now has a family and tiny foxes. However, the feeling of guilt does not leave Peter for an hour. Orphaned and alone, he becomes a volunteer for the Water Warriors, an organization that cleans up war-poisoned rivers. But when one of Pax's cubs is in mortal danger, the fox comes for help to the only person he trusts... Sarah Pennypacker is a writer from the United States, the author of two dozen books that have received awards and reader recognition. The story of the friendship between a boy and a fox, Pax (2016), became a worldwide bestseller. And five years later, the story had a long-awaited sequel, as poignant and deep as the first book.