Sleeping with the Enemy (Lords of Lancashire #4)
Jackie Barbosa

After almost twenty-five years in His Majesty's service, Lieutenant Colonel Geoffrey Langston never expected to wake up in heaven, much less being tended by an angel. But when he regains consciousness in the presence of a beautiful, dark-haired woman and with no memory of how he came to be there, what else can he think? Except it's rather odd for an angel to have an American accent.
As the long-widowed Laura nurses the wounded Geoffrey back to health, the attraction between them heats from a simmer to a boil. Bound by his oath to the British crown, Geoffrey should be working to find his way back to his regiment and from the, to England. Instead, he's sleeping with the enemy...and thereby committing the crime of desertion if not treason. But then, who's going to find out?
If only Geoffrey didn't have a family back home who refuse to take "missing in action" for an answer.