The long-awaited sequel to “Murder in Old Bombay” is here! “Peril at the Exposition,” a mystery from award-winning author Nev March, will be published on July 12 by Macmillan Publishers. A young immigrant couple stumbles upon dangerous secrets at Chicago’s magnificent 1893 World’s Fair, where the glittering landscape of the Gilded Age belies the ugly underbelly and social turmoil of the late Victorian era.