In the winter forests of 1840s Europe, Something ancient begins to wake. Katarina Vargova has spent years hunting the creatures that crawl from the Nest. She is alone except for Luna, the wolf who has never left her side. When she crosses paths with Clara Galloway, a wandering scholar fleeing from her past, their uneasy alliance becomes the first spark of a new vigil. After rescuing a wounded wolf pup and deciding I'm naming her Stella, the balance of the forest shifts. The scouts grow bolder. The nest stirs beneath the snow. And something else, massive, grieving, and powerful, roams the pines, leaving warnings in its wake.