Another of the prolific Macdonald's celebrations (The Trevarton Inheritance, 1996, etc.) of independent-minded women in early 20th-century Britain. Set, like many of its predecessors, in Cornwall, Tide follows the coming-of-age of pretty, canny, resourceful Jennifer Owen during WW I. Jennifer's father dies early on (a victim of a Zeppelin raid), and, anxious to be of some help, she decides to become a nurse. Also influencing her decision is her growing infatuation with the charming lady-killer Barry Moore, who goes off to serve in France. As a nurse, Jennifer thinks, she may be sent to the Continent, and once there she can find Barry, who's become an attentive pen pal. She does eventually end up tending a wounded Barry. Eventually, he goes back to the front, but not before the two become lovers. Then Jenny (who, it turns out, has a natural gift for acting) is recruited to star in a film about a heroic nurse and a dying soldier. Life, of course, ends up imitating art, as a horribly wounded Barry is shipped home, and Jennifer is faced with some daunting decisions. No one handles this sort of somber historical romance better than Macdonald, and this latest outing shows no decline in his storytelling gifts. Unsurprising but effective.