The Bone cousins, Gran¡¯ma Ben, and Thorn finally reach the city of Atheia, where they reunite with old friends and plan to thwart The Lord of the Locusts. The Pawan army has joined forces with Briar and the rat creatures, and danger increases as Thorn¡¯s visions get stronger. Meanwhile, Phoney Bone is convinced Atheia is a city rich in gold, and he is determined to find it!
Lucius, Smiley, and Phoney survive an attack by the rat creatures and return safely to Lucius¡¯ tavern inBarrelhaven. Phoney, desperate to win a bet with Lucius, stokes the townspeople¡¯s fear of dragons andboasts that he is a professional dragonslayer. Back at the farm, Fone Bone and Thorn are troubled by strange dreams, and Gran¡¯ma Ben¡¯s reaction to them is stranger still: She reveals long-kept secrets and warns of great danger. Thorn, Fone Bone, and Gran¡¯ma Ben may have to leave the farm forever.
Fone Bone and his cousins plan to return home after visiting the village of Barrelhaven with Thorn and Gran¡¯ma Ben. But Phoney risks everything on one last get-rich-quick scheme for the town¡¯s annual Great Cow Race. As usual, Phoney¡¯s plans go disastrously awry, and Boneville seems further away than ever. Meanwhile, ominous signs indicate that a war is brewing, and Fone finds himself helping his friends defend their valley from a formidable enemy.
The three Bone cousins ¡ª Fone Bone, Phoney Bone, and Smiley Bone ¡ª are separated and lost in a vast, uncharted desert. One by one, they find their way into a deep, forested valley filled with wonderful and terrifying creatures. Eventually, the cousins are reunited at a farmstead run by tough Gran¡¯ma Ben and her spirited granddaughter. But little do the Bones know, there are dark forces conspiring against them, and their adventures are only just beginning!