Final resting place? Deck chair Sheila Mackey has a secret. To the world, she's author of a blockbuster book. Her wily great-aunt, the actual author, orchestrated this mutually beneficial masquerade. Now the aunt's retiring and Sheila must draft Act Two of her own life. This cruise is supposed to be the perfect time to do that. Crossing the Atlantic on the Diversion, Sheila finds a dead body on...