A Secret of Birds & Bone (paperback) by Kiran Millwood Hargrave

In an Italian city ravaged by plague, Sofia's mother carves beautiful mementoes from the bones of loved ones. But one day, she doesn't return home. Did her work lead her into danger? Sofia and her little brother Ermin are sent to the convent orphanage but soon escape, led by an enigmatic new friend and their pet crow, Corvith.

Together they cross the city underground, following clues in bones up to the towers of Siena, where - circled by magpies - the children find the terrible truth ... The fourth children's novel by Times number one bestselling author Kiran Millwood Hargrave, winner of the Waterstones Children's Book Prize and the British Book Awards Children's Book of the Year From the author of The Island at the End of Everything, The Way Past Winter, Julia and the Shark and The Mercies - chosen for the Richard & Judy Book Club A darkly beautiful historical novel featuring Kiran's trademark magical realism and an enthralling mystery