Arthur Conan Doyle 
A Study in Scarlet [EPUB ebook] 

Doctor John Watson is looking for a new place to live when he is introduced to Sherlock Holmes, a peculiar man who happens to be looking for a roommate. Watson soon finds himself fascinated by Holmes' numerous eccentricities—including the ability to deduce information about people without ever speaking to them. When a body is found next to the hastily scrawled word "RACHE, " Holmes' scientific study of deduction is put to the test as Dr. Watson joins him in what will be the first of many thrilling investigations.