A puzzling photograph, a box filled with faded toy horses, and a single fractured memory are all that Maya has left of her mother. In Grandmother house, she lives like a captive, tethered by rules... until a shocking event changes everything. A world away, in the rugged Wyoming wilderness, a wild mustang called Artemisia runs free, belonging only to the stars. In a land where mountain lions pose an ever-present threat, she must vigilantly defend her foal... until a devastating act separates them from their band. Like a braided rein, Maya's and Artemisia's lives will ultimately intertwine.

    They will tell you in the village that it is haunted, but you must not be afraid. When the time comes ... you will know what to do.'Mr Blunden's words echoed through Lucy's ears as she explored the house. It was such an old house that it seemed to Lucy as if all the past was gathered up inside it as if in a great box; as though it had a life of its own that continued to exist just beyond the reach of her eyes and ears. Did Mr Blunden, who went out of his way to offer their mother the job as caretaker, mean to help or hurt them? Could she and her brother Jamie really help those troubled ghosts from another age?