No happy ending in Nelson DeMille's sequel

THE GATE HOUSE. By Nelson DeMille. Grand Central Publishing. 688 pages. $27.99. It doesn't take long to guess John Whitman Sutter will reunite on Long Island's Gold Coast with his former wife, Susan Stanhope Sutter, despite a disastrous schism and a decade apart. What will keep us turning the pages is figuring out how quick-witted John will stop the son of the Mafia don and lover who Susan ...