Briarwood Cottage (Irish Castlelough Trilogy #3.5)
JoAnn Ross

When burned-out war journalist Duncan McCaragh is assigned to cover a "sighting" of The Lady — Ireland's sea beastie version of Scotland's Nessie — he decides to use his forced time in Castlelough to come up with a plan to win back his estranged wife. Failure is not an option.
What Duncan has no way of knowing is that photojournalist Cassandra Carpenter is also on her way to Castlelough with the divorce papers Duncan's been refusing to sign. Can the magic of the Emerald Isle and The Lady reunite these two wounded hearts?