After her tenth year living in Ireland, Heather knows a piece of herself is missing. Thinking it is the hills of her childhood home in Penland, North Carolina, she organizes a hillwalking group with two other Americans. Whatever is missing would surely be found nestled amongst the ruins of Glendalough, St. Kevin's ancient monastic city. When Heather finds Celtic designs in the altar at St. Saviour's, she picks up her tinsmithing tools again, but the piece is missing still. As she hammers ceiling tiles from Ireland's past, she hears a voice from her own past, a voice demanding to be heard, a voice demanding to tell its story, a voice whose story would crumble the very walls in which Heather resides.