The adventure starts when cousins Fone Bone, Phoney Bone, and Smiley Bone are run out of Boneville and later get separated and lost in the wilderness, meeting monsters and making friends as they attempt to return home.

Now that they are reunited, Fone Bone, Phoney Bone, and Smiley Bone plan to return home, but Phoney Bone risks everything on a get-rich-quick scheme and it all goes wrong. Plus, a war is brewing and Fone Bone helps his new friends to defend their idyllic valley from a formidable enemy.

It's full-fledged war as Briar, the rat creatures, and the Pawan army storm the city of Atheia. The Bone cousins, Thorn, and Gran'ma Ben are all there to defend the Valley and stop the return of the Lord of the Locusts. When Thorn goes inside a ghost circle, she hears a voice urging her to seek the Crown of Horns. What follows is another dangerous journey for Thorn and loyal Fone Bone as they race to the sacred grounds of the dragons, searching for...

A graphic novel which presents the story of the Bone cousins who try to save ancient Atheia from The Hooded One but the time is short, and they must hurry before the city is totally destroyed.

The adventure starts when cousins Fone Bone, Phoney Bone, and Smiley Bone are run out of Boneville and later get separated and lost in the wilderness, meeting monsters and making friends as they attempt to return home.