In a house in Oxford, three people are having breakfast: Carol, her husband Jan, and his father Josef. They are talking about Prague, because Carol wants them all to go there for Christmas. Josef was born in Prague, but he left his home city when he was a young man. He is an old man now, and he would like to see Prague again before he dies. But he is afraid. He still remembers another Christmas in Prague, many long years ago - a Christmas that changed his life forever.

Mr Ross lives on an island where no visitors come. He stops people from taking photographs of him. He is young and rich, but he looks sad. And there is one room in his house which is always locked. Carol Sanders and her mother come to the island to work for Mr Ross. Carol soon decides that there is something very strange about Mr Ross. Where did he get his money from? How can a young man buy an island? So she watches, and she listens - and one night she learns what is behind the locked door.

Witches are dangerous. They can kill you with a look, or a word. They can send their friend the Devil after you in the shape of a dog or a cat. They can make a clay picture of you, then break it.... and a few weeks later, you are dead. Today, of course, most people don’t believe in witches. But in 1612, everybody was afraid of them. Young Jennet Device in Lancashire knew a lot about them because she lived with the Witches of Pendle. They were her family.

Allegra is an unusual name. It means ’happy’ in Italian, but the little girl in this story is sometimes very sad. She is only five years old, but she tells Adrian, her new friend, that she is going to die soon. How does she know?And who is the other Allegra? The girl in a long white nightdress, who has golden hair and big blue eyes. The girl who comes only at night, and whose hands and face are cold, so cold.

In the mountains of Transylvania there stands a castle. It is the home of Count Dracula – a dark, lonely place, and at night the wolves howl around the walls. In the year 1875 Jonathan Harker comes from England to do business with the Count. But Jonathan does not feel comfortable at Castle Dracula. Strange things happen at night, and very soon, he begins to feel afraid. And he is right to be afraid, because Count Dracula is one of the Un-Dead – a vampire that drinks the blood of living people.

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. His theories have helped change the whole nature of the study of social biology, and have forced thousands to rethink their beliefs about life.

Astrophysicist Neil deGrasse Tyson has attracted one of the world’s largest online followings with his fascinating, widely accessible insights into science and our universe. Now, Tyson invites us to go behind the scenes of his public fame by unveiling his candid correspondence with people across the globe who have sought him out in search of answers. In this hand-picked collection of 100 letters, Tyson draws upon cosmic perspectives to address a vast array of questions about science, faith, philosophy, life, and of course, Pluto.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

Hilarious, fascinating, and a roller coaster of dizzying, historical what-ifs, Napoleon's Hemorrhoids is a potpourri for serious historians and casual history buffs. In one of Phil Mason's many revelations, you'll learn that Communist jets were two minutes away from opening fire on American planes during the Cuban missile crisis, when they had to turn back as they were running out of fuel. You'll discover that before the Battle of Waterloo, Napoleon's painful hemorrhoids prevented him from mounting his horse to survey the battlefield.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

Welcome to the Universe is a personal guided tour of the cosmos by three of today's leading astrophysicists. Inspired by the enormously popular introductory astronomy course that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton, this book covers it all - from planets, stars, and galaxies to black holes, wormholes, and time travel.

From launchpad explosions to a pernicious cricket infestation to the demanding management style of Musk himself, the rise of SpaceX was beset with challenges and far from inevitable. Find out how the startup beat the odds and flew high enough to outpace their rivals... and where they're going next.

How do today's most successful tech companies - Amazon, Google, Facebook, Netflix, Tesla - design, develop, and deploy the products that have earned the love of literally billions of people around the world? Perhaps surprisingly, they do it very differently from the vast majority of tech companies. In Inspired, technology product management thought leader Marty Cagan provides listeners with a master class in how to structure and staff a vibrant and successful product organization and how to discover and deliver technology products that your customers will love.

In The Butchering Art, the historian Lindsey Fitzharris reveals the shocking world of 19th-century surgery on the eve of profound transformation. She conjures up early operating theaters - no place for the squeamish - and surgeons, working before anesthesia, who were lauded for their speed and brute strength. They were baffled by the persistent infections that kept mortality rates stubbornly high. A young, melancholy Quaker surgeon named Joseph Lister would solve the deadly riddle and change the course of history.

In this illuminating audiobook, Tyson and coauthor James Trefil, a renowned physicist and science popularizer, take on the big questions that humanity has been posing for millennia - How did life begin? What is our place in the universe? Are we alone? - and provide answers based on the most current data, observations, and theories.