"There's awful, to see a creature drowned, isn't it?” says Jac Coed-y-carw after one of his newborn calves falls into the Gwendraeth Fach river and loses its life.
But drowning of a much worse kind threatens the south Wales valley of the Gwendraeth Fach, and the village of Llangyndeyrn within it. It's summer 1963. The Tryweryn valley in north Wales has been dammed and is already under water with residents turned out of their homes and their land flooded. Cwm Gwendraeth Fach in Carmarthenshire is next on the list...
The local farmers are determined not to let their land go the same way. The local children play a prominent part in the protests and in guarding the valley, and Dai, Gareth and Nia of Dolffynnon farm are in the thick of it. But what if someone in the valley is a traitor? What if they are betrayed from within?
A novel full of excitement and bravery about ordinary people battling for their area's future.