The City of Mirrors by Justin Cronin Ballentine Books/Random House, $28.00, 598 pages, ISBN 978-0-345-50500-2 Hey out there . . . it’s October . . . the month of election surprises, all Hallows Eve and the Day of the Dead. Here in America, most folks celebrate by dressing their kids up in weird or outlandish costumes and going house-to-house, begging for candy on the last day of the month.