Billionaire Saul Abercrombie owns a vast tract of land on the Pembrokeshire coast. By restoring the original forest that covered the area before medieval times, he believes he will rekindle the spirits of ancient folklore. But the re-planting of the forest will revive an altogether darker and more dangerous entity - and young arboreal expert Tom Curtis will find himself engaging in an epic, ancient battle between good and evil. A battle in which there can be only one survivor.