"The Winter Ghosts" is a novella by Kate Mosse that explores themes of loss, memory, and the supernatural. Set in the French Pyrenees during the 1920s, the story follows Freddie Watson, a young man grieving the death of his brother in World War I. While on a journey to find solace, he encounters a mysterious village and its haunting past. As Freddie uncovers the village's secrets, he meets Lydia, a ghostly figure who reveals the tragic history of the area. The narrative intertwines the past and present, highlighting the impact of grief and the enduring connection between the living and the dead.