The Valley of Lost Secrets

When Jimmy is evacuated to Wales with his little brother, Ronnie, he thinks his biggest problem will be dealing with the boredom of the countryside. But when he discovers a human skull, hidden in the hollow of a tree, he starts to wonder if Wales is more dangerous than war-torn London! Where has this skull come from? Before Jimmy knows it, he is pulled into a mystery from many years before. A mystery that has been haunting the village of Llanbryn. In a time of turmoil, can Jimmy find a way to bring people together again?