Book of Killowen is the newest installment in Erin Hart’s Nora Gavin/Cormac Maguire series of archaeological crime novels set in modern Ireland. She is a pathologist, he is an archaeologist and together they find themselves investigating cases built around bodies found in bogs of Ireland. Book of Killowen came out in March and offers up more than a few surprises, chiefly, the discovery of not one but two bodies in a bog, one ancient and one modern! If you like a good blend of history, archaeology and forensics, check out this series.
Haunted Ground (2003)
Lake of Sorrows (2004)
False Mermaid (2010)
Book of Killowen (2013)
Erin Hart has a wonderful, informative, official website , and writes a fun blog , which includes a lot of background on the research she does for her novels.
Another great resource is the glossary she created to help readers learn how to pronounce things properly.