On the shores of Lyme Regis, where G.K. Chesterton takes his holidays, a strange sound haunts the night.... The sleuthing mice of Saint Wulfhilda's Abbey School are back for a seaside adventure in this third installment of The Sister Seraphina Mysteries! Join Sister Seraphina, Sister Alberta, Dominic, and Marigold as they investigate some mysterious happenings on their summer holiday―and learn unexpected lessons about the corporal works of mercy and the gift of imagination along the way.