New York: Sherlock Holmes, the detective famed for his icy logic, is hot again, brought back to life by authors who believe the supremely rational character strikes a chord in this age of post-9/11 uncertainty. Seventy-five years after the death of his creator, Arthur Conan Doyle, Holmes is popping up in historical locales from Hiroshima to Holocaust-haunted Europe in recent portrayals by literary-minded US writers. Caleb Carr's "The Italian Secretary," a novel commissioned by Conan Doyle's estate, hit book stores last month, following Mitch Cullin's "A Slight Trick of the Mind," featuring the sleuth amid the debris of the world's...