Young Francie O'Sullivan, from the Irish family we first met in The Cottage at Bantry Bay has had a successful operation in a Dublin hospital, but longs to return to his beloved family in County Cork. He heads out the hospital door, no permission asked, and finds a train--won't any train do? Francie finds himself making a speedy tour (in the opposite direction from home) around the Emerald Isle, a journey full of adventure, laughter, and endearing friendships for Francie and the reader.