A cursed estate. A reluctant heiress. One night when the house falls asleep ? and not everyone wakes.

When Eleanor Rosegrave inherits Rosegrave Manor, she expects legal complications, structural problems, and the unpleasant task of deciding whether to sell the family estate. She does not expect gates that open on their own, roses blooming out of season, music in empty corridors, or a journal filled with warnings about the autumn full moon.

Sebastian Thorne has spent four years researching the manor's history. He knows Rosegrave is not simply haunted. Once a year, on the night of the autumn full moon, the house enters a strange and dangerous sleep. Some who enter that sleep return at dawn. Some do not.

Eleanor should leave before the moon rises.

Instead, she stays.

As Eleanor and Sebastian search the manor's library, gardens, hidden rooms, cellar stones, and unfinished diaries, they uncover the truth of an old bargain, a broken sacrifice, and the sleeping curse that has bound generations of Rosegrave women to the house.

But Rosegrave Manor has been waiting for an heir who will understand what the curse truly requires.

And the closer Eleanor comes to the truth, the harder it becomes to know whether the house wants to destroy her ? or be chosen by her.