Rollercoasters: A Study in Scarlet by Arthur Conan Doyle
In this, the first of Conan Doyle's classic Sherlock Holmes mysteries, Dr Watson and Holmes embark on their first case together. A man is found murdered, with no apparent physical wounds and a terrible grimace fixed on his face. The police are mystified, but using his astonishing skills of deduction and logic, the famous detective uncovers a story of deceit, love, revenge and murder than spans years and stretches across continents. From the body found in an abandoned house, Watson and Holmes chase the clues across London and beyond to reach a gripping conclusion, meanwhile cementing their partnership as the most famous detective pair in literature.