This volume of Bone is concerned with Phone and Smiley’s effort to return a stray rat creature cub to its kind. Many complications ensue, with opportunities to reveal more about the larger plot around events in the valley. There are no humans in this segment, but there is a lot of action, with multiple chases and a big fight or two. And Smith really lays on the cute, with the possum kids encountering various peers in the eastern mountains. On the whole, this collection is a fine installment in the continuing series.