An Aelf Fen medieval mystery - Come to me! I need you! These words bring apprentice healer Lassair awake one morning in the spring of 1092, trembling with terror. Soon Lassair is certain that one of her loved ones is in terrible danger . . . and when the news comes that a nun at Chatteris Abbey - where her beloved sister Elfritha lives - has been murdered, Lassair fears the worst. She sets off immediately, but the danger she will have to face may be greater than she is ready for . . .