From the introduction:
The Lady Emily, recently married to the wealthy Lord Gryffeth Highnam, finds herself, far from ushered into the Springtime of happiness that she and all her kin had supposed, locked instead in a gilded cage, cut off from all contact with family and trapped in the ancestral keep of her cold and mysterious husband. What is it that keeps him away from the estate all day, and consumes all his energies at night so that their marriage bed remains cold? What secret does he guard atop the castle tower to which he alone has the key? Does he brood over some personal tragedy, or is there, as the servants whisper, some sorcery or gross blasphemy afoot? Can their love be salvaged, or is it destined to die stillborn? And can the Lady’s dear friend the Bishop of Gloucester, to whom she has sent discreet letters, guard her soul if her ills be born of Hell, or comfort her heart if they be born of Earth? Will he even dare, or ill the Lady be forced, flickering lantern in hand, to brave the night to lay the secret bare herself?