When Robin Deering touches a map, she travels magically to that very spot. Sounds great, but the terra firma landings can be hard and sometimes injurious. On the other hand, water landings could drop her into the jaws of something ravenous. Almost always, an incidental touch of a map takes her to a place she never intended to go-much like her very unenchanted life after an out-of-the-blue divorce. Her return trips pull her onto the deck of her father's...