The Heathens Mysterious Book Report No. 461 by John Dwaine McKenna The Heathens, (Putnam, $27.00, 400 pages, ISBN 978-0-593-32839-2) by Edgar finalist and NY Times  bestselling author  Ace Atkins, is  the eleventh  in his Quinn Colson series . . . and it’s easily the best one yet. Colson is an ex-army Ranger who’s come home to Mississippi, where he’s now the Tibbehah County Sheriff, elected on a vow to