Trigell (Boy A), a British author who lives in Chamonix, captures the beauty of the region, the allure of the slopes -- and the vibe of a sub-culture in this edgy novel with a serial rapist on the loose. He weaves the tale of a callow man named Itchy and his obsessive search for a killer with strands of a book, in the 19th-century style, on Byron and the Romantic poets into a satisfying thriller.  (ALP39, $16.95)