There must be something uniquely therapeutic about a sojourn in Ireland. Because memoirists (Kevin O'Hara in "The Last of the Donkey Pilgrims" and John McCarthy in "A Ghost Upon Your Path"), poets (Fred Marchant), and novelist Frank Delaney have all seen the land as a place to heal the ills of war. In "Shannon," an American priest travels Ireland's Shannon River in search of his family roots, hoping to find peace after experiencing the atrocities of WWI. In Ireland, however, he bears witness to the country's descent into civil war.