Young chimney sweep Tom has started seeing strange, supernatural things – fairies in the flowers by the river, a soot monster crouching in the darkness of a chimney, and then the mysterious river spirit Elle. Elle joins Tom and the other children apprenticed to cruel master sweep Mister Crow. Together, they shimmy up the town's narrow, filthy chimneys. But Tom has an ominous feeling in his bones, and when he faces his most dangerous job of all, the reason for Elle's magical appearance becomes clear . . .
Lucy Strange is the best-selling children's author of titles including The Secret of Nightingale Wood, a Waterstones Children's Book of the Month, and Our Castle by the Sea, which was nominated for the Carnegie Medal, shortlisted for the Waterstones Book Prize 2020, and was the first Independent Booksellers' Children's Book of the Month.