"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"--

An old friend's death sends Ruth to Lancaster to investigate an important archaeological discovery, but what she finds is a mystery that may have gotten her friend murdered.

"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 Ruth Galloway arrives to supervise the opening of a coffin containing the bones of a medieval bishop, she finds the museum's curator lying dead on the floor. Soon after, the museum's wealthy owner is also found dead, in his stables. These two deaths could be from natural causes, but once again Ruth and DCI Harry Nelson cross paths during the investigation. When threatening letters come to light, events take an even more sinister turn. But as...

"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...