While trying to enjoy an ocean journey on the Queen Mary II, Jessica Fletcher gets caught up looking for a priceless diamond--and the killer desperate enough to take a life for it.

Jessica is saddened when her eccentric old friend Tillie Mortelaine passes away?and surprised to learn that Tillie has left her a million dollars. But there are strings attached. Jessica must use the money to help the literacy fund she and Tillie established years ago in Savannah, Georgia. And she will receive the money only if she can solve a mystery within the month: the murder of Tillie?s fiancé, Wanamaker Jones.