Christmas 1846 and Haworth is in the grip of a freezing winter. Charlotte Emily and Anne Brontë are rather losing interest in detecting until they hear of a shocking discovery: the bones of a child have been found interred within the walls of Top Withens Hall home to the scandalous Bradshaw family. When the sisters set off to find out more they are confronted with an increasingly complex and sinister case which leads them into the dark world of orphanages and onto the trail of other lost children. After another local boy goes missing Charlotte Emily and Anne vow to find him before it's too late. But in order to do so they must face their most despicable and wicked adversary yet…