Revenge of the zombie monks

Behind the walls of the monastery, the monks of Xenos grow enchanted golden apples for the villagers who live in their border world. The golden apples have magical healing powers that keep the villagers from harm. The monks also guard the knowledge that binds Xenos to her sister worlds and that keeps Xenos and its citizens safe. But now the monks have been zombified! What will the people of Xenos do now that they have no protection?