Two women lost in grief are drawn toward a magical realm of dreams--and into the path of an ancient evil--in this stunning fantasy debut about the secret places that hide just beneath the surface of our world, perfect for readers of Meg Shaffer, Alix E. Harrow, and Erin Morgenstern. A hidden loch. Adrift after the death of her adventurous late husband Ben, Toby becomes increasingly obsessed by their dream of finding a mythical "drowned village" deep in the Scottish Highlands. So when she discovers a post online that could lead her there, and a rumor it's a place lost things can be found, she becomes desperate to reach it. An impossible realm. Seventeen-year-old Ash has always told herself she doesn't need anyone. Still, after her restless mother passes away, Ash is drawn into an enchanted network of houses and caretakers that guard a miraculous place: the Mirror Halls, the boundary between the sleeping and the dead. Her mother told her stories of magic all her life, but nothing can prepare Ash for the secrets she uncovers there. What will it cost you to dream? But some places are hidden for a reason. As both Toby and Ash hope to recover what they've lost, they become entangled in a mystery far darker than either imagined--one crafted centuries before. Inspired by the ancient tale the Epic of Gilgamesh, one of our first recorded stories, The Mirror Halls is an unforgettable journey to a place where our dreams can reunite us with what matters most--or become unendurable nightmares.