The Virgin in the ice

Winter, 1139: Brother Cadfael's tranquil life in the monastery gardens at Shrewsbury is once again interrupted by violent, mysterious happenings. Raging civil war has sent many refugees fleeing north from Worcester, among them two orphans of a great family and their companion, a nun. But they seem to have disappeared somewhere in the wild winter landscape of frost and snow and Cadfael sets out to find them.