For years, Frederick Lowell has quietly managed the estate of the revered novelist Edward Goodwin. Though the author of only one novel, that book has gone on to sell hundreds of millions of copies, keeping Lowell comfortable, as well as Goodwin’s ne’er-do-well and feckless children. Then word comes that a sequel to the novel may in fact exist, and Lowell becomes a detective, navigating a series of startling twists that take him from a Hamptons retreat to a state penitentiary, from a Westchester homestead to a decaying Southern hotel