Face Down beside St. Anne's Well

In Book Nine of the Face Down series, sixteenth-century gentlewoman, herbalist, and sleuth Susanna, Lady Appleton, travels north to the old Roman baths at Buxton to help her foster daughter, Rosamond, discover the truth about the sudden death of Madame Louise Poitier, French teacher at Bawkenstanes Manor. Does this murder relate to Mary Queen of Scots wish to visit the bathsor is the motive closer to home? [9th of the FACE DOWN/Lady Appleton Series] Historical Mystery by Kathy Lynn Emerson; originally published by Perseverance Press