Nelson, investigating a series of murder-suicides he has connected to an archaeological discovery--and to Ruth's seemingly sweet new neighbor, Zoe--he enlists Ruth's help until she, Zoe, and Kate go missing and he is left scrambling to find them before it's too late.

"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...

"In the eleventh installment of the award-winning Ruth Galloway series, she and DCI Nelson are haunted by a ghost from their past, just as their future lands on shaky ground. DCI Nelson has been receiving threatening letters. They are anonymous, yet reminiscent of ones he has received in the past, from the person who drew him into a case that's haunted him for years. At the same time, Ruth receives a letter purporting to be from that very same person--her...

"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"-- When archaeologist Angelo Morelli asks for Ruth Galloway's help identifying bones found in the tiny hilltop town of Fontana Liri, she jumps at the chance to go, bringing her daughter along...

"The macabre discovery of a downed WWII plane with the pilot's skeleton still inside leads Ruth and DCI Nelson to uncover a wealthy family's secrets in the seventh Ruth Galloway mystery" --