Duncton Found — William Horwood

The moles of Duncton Wood face the ultimate test in the final novel of this classic fantasy trilogy inspired by the splendor of England's countryside.
The ruthless war against the Stone has almost been won by disciples of the Word -- only wild Siabod and mysterious Beechenhill still hold out, and everywhere the followers of the Stone go in peril of their lives.
Yet in the shadows of Duncton Wood, a new light is shining. For the Stone Mole has come, to revive the moles' faith in themselves -- and in the ancient power of the Stone -- to defeat and deny the evil Word. But it is a task that will demand a greater sacrifice than any mole has yet to face . . .