When Pip and Tim move into an old manor house, they hear strange tapping noises at night that seem to be coming from the behind the wall. They tap back, a hidden panel opens – and out comes...

The First World War, 1916. Ted Foley, ship's boy, is captured by the Germans after his destroyer HMS Nomad is sunk in the great naval Battle of Jutland. Nobody gets away from the PoW camp at...