The very first Sherlock Holmes mystery.The very first Hercule Poirot mystery. Two of the greatest detectives of crime fiction in one single volume. This book contains two thrilling cases: "A Study in Scarlet" by Sir Arthur Conan Doyle.Sherlock Holmes receives a telegram requesting a consultation in a fresh murder case. He is reluctant to help because credit would go entirely to the officials. Watson urges him to reconsider so Holmes invites him to accompany him as he investigates the crime scene, an abandoned house off the Brixton Road. Holmes observes the pavement and garden leading up to the house before he and Dr. Watson meet Inspectors Gregson and Lestrade. The four observe the crime scene, Holmes using a magnifying lens and tape measure. The male corpse, he's told, has been identified as a very wealthy man named Enoch Drebber. Blood has been found in the room but there is no wound on the body. "The Mysterious Affair at Styles" by Agatha Christie.One morning at Styles Court, an Essex country manor, its household wake to the discovery that the owner, elderly Emily Inglethorp, has died. She had been poisoned with strychnine. Arthur Hastings, a soldier from the Western Front staying there as a guest on his sick leave, ventures out to the nearby village of Styles St. Mary, to enlist help from his friend staying there - Hercule Poirot.