Gone by Mo Hayder Atlantic Monthly Press, $24.00, 416 pages, ISBN 978-0802119643 We’re continuing with the Edgar winners this week, reviewing the 2012 recipient of the Best Book Award.  She’s a British author named Mo Hayder, and her novel is Gone.  This novel is the latest installment of an ongoing series featuring inspector Jack Caffery and Sergeant Flea Marley.  They have had an almost, but not quite, romantic relationship