"Norwich is riddled with old chalk-mining tunnels, but no one's sure exactly how many. When Ruth is called in to investigate a set of human remains found in one of them, she notices the bones are almost translucent, a sign they were boiled soon after death. Once more, she finds herself at the helm of a murder investigation. Meanwhile, DCI Nelson is hunting for a missing homeless woman, Barbara, who he hears has gone "underground." Could she have disappeared...

"Forensic archaeologist Ruth Galloway uncovers the bones of a Victorian murderess while a baby snatcher threatens modern-day Norfolk in this exciting new entry in a beloved series. Every year a ceremony is held in Norwich for the bodies in the paupers' graves: the Service for the Outcast Dead. Ruth has a particular interest in this year's proceedings. Her recent dig at Norwich Castle turned up the body of the notorious Mother Hook, who was hanged...

"In this highly atmospheric mystery, Ruth Galloway--described by Louise Penny as "a captivating amateur sleuth"--and DI Nelson have their summer vacations horribly disrupted by a murder in a medieval Italian town where dark secrets are buried as deep as bones"--