When orphaned Seren Rhys boards a train to Wales, the only magic she hopes to find is that of a family. But when a mysterious package containing a badtempered clockwork crow ends up in her care, Seren realizes that nothing about her new life will be as she expected. For all Seren’s daydreams of befriending Tomos, her guardians’ son, the boy is nowhere to be found. The few servants who now keep the empty manor house of Plas-y-Fran running whisper tales of the Fair Family—the Fae—who take children from what was once Their land. With the Clockwork Crow at her side, Seren sets out to rescue Tomos and reunite her new family before the Fae keep him trapped in Their chilling, magical world forever. Filled with stunning descriptions and rich in Welsh folklore, this adventure from New York Times bestselling author Catherine Fisher presents readers with a wintry gothic tale that opens worlds both new and old.