O'r Tywyllwch

The world has been polluted by people, and everyone has been forced to evacuate from the surface of the earth and live underground... forever.

But what will Hywyn do with his dog Sam, as animals aren't allowed in the City underground? And what about his best friend Meilyr's secret? How will it be possible to trick the authorities with the soldiers keeping a close eye on everyone and everything?
A gripping, sinister story that is extremely relevant for our times, and one which will grab the imagination of readers of every age.