A year ago Sophie Malone barely survived being left for dead in a blood-soaked Irish cave. Haunted by her experience, she immerses herself in her archeology research. But now the fabled Celtic treasure she believes disappeared from that cave has resurfaced in Boston, in the hands of a serial killer. Boston detective Cyrus "Scoop" Wisdom has recovered from an explosion that nearly took his life. Now he's after the person who planted the bomb -- and...

As a young boy, Oliver York witnessed the murder of his wealthy parents in their London apartment. The killers kidnapped him and held him in an isolated Scottish ruin, but he escaped, thwarting their plans for ransom. Now, after thirty years on the run, one of the two men Oliver identified as his tormentors may have surfaced. Emma Sharpe and Colin Donovan are enjoying the final day of their Irish honeymoon when a break-in at the home of Emma's grandfather,...