Bone Volume 5: Rock Jaw - Master of the Eastern Border

Fone Bone and Smiley Bone strike out into the wilderness to return a lost rat creature cub to the mountains. They meet new allies as well as a mysterious new foe: the formidable Rock Jaw, a giant mountain lion who fancies himself the Master of the Eastern Border. Together they uncover the riddles of nature, and before it is over, two great titans of the realm meet in an earth-shattering clash to determine the fate of the land.