Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but which looks completely different. Particularly as it’s carried though space on the back of a giant turtle (sex unknown). It plays by different rules. But then, some things are the same everywhere. The Disc’s very existence is about to be threatened by a strange new blight: the world’s first tourist, upon whose survival rests the peace and prosperity of the land.

A nightmarish danger threatens from the other side of reality. . . . Armed with only a frying pan and her common sense, young witch-to-be Tiffany Aching must defend her home against the monsters of Fairyland. Luckily she has some very unusual help: the local Nac Mac Feegle—aka the Wee Free Men—a clan of fierce, sheep-stealing, sword-wielding, six-inch-high blue men.

According to The Nice and Accurate Prophecies of Agnes Nutter, Witch (the world's only completely accurate book of prophecies, written in 1655, before she exploded), the world will end on a Saturday. Next Saturday, in fact. Just before dinner. So the armies of Good and Evil are amassing, Atlantis is rising, frogs are falling, tempers are flaring. Everything appears to be going according to Divine Plan.

A man. His ex-girlfriend's cat. A sadistic game show unlike anything in the universe: a dungeon crawl where survival depends on killing your prey in the most entertaining way possible. In a flash, every human-erected construction on Earth - from Buckingham Palace to the tiniest of sheds - collapses in a heap, sinking into the ground. The buildings and all the people inside have all been atomized and transformed into the dungeon: an 18-level labyrinth filled with traps, monsters, and loot.

Once upon a time, in the magical land of San Francisco, there lived a not-so-ordinary girl named Laurel Pettigrew. She was supposed to be the Chosen One. The plan was simple: She would vanquish the great evil Tybus in an epic battle. But destiny had other ideas, and Laurel's performance in the whole heroics department was a colossal flop. Now, instead of being a legendary hero, Laurel's the resident pariah of the magic realm. And what’s worse, the dark wizard Tybus swooped in, took over the realm, and forced all supernatural creatures to live under his tyrannical rule.

A delightfully funny, fantastically inventive collection of twenty unearthed short stories by Sir Terry Pratchett, the award-winning and bestselling author and creator of the phenomenally successful Discworld fantasy series. These rediscovered tales were written by Terry Pratchett under a pseudonym for British newspapers during the 1970s and 1980s. The stories have never been attributed to him until now, and might never have been found—were it not for the efforts of a few dedicated fans.

Thirteen-year-old Mau is the only one left after a giant wave sweeps his island village away. But when much is taken, something is returned, and somewhere in the jungle, Daphne - a girl from the other side of the globe - is the sole survivor of a ship destroyed by the same wave.

To the thousands of tiny nomes who live under the floorboards of a large department store, there is no outside. Things like day and night, sun and rain are just daft old legends. Then a devastating piece of news shatters their existence: the Store, their whole world, is to be demolished.

In the beginning, there was nothing but endless flatness. Then came the Carpet.... Now, the Carpet is home to many different tribes and peoples, and a new story: the story of Fray, sweeping a trail of destruction across the Carpet; the story of power-hungry mouls - and of two Munrung brothers who set out on an adventure to end all adventures when their village is flattened. It's a story that will come to a terrible end if someone doesn't do something about it.

A storm. Rain-lashed city streets. A flash of lightning. A scruffy lad sees a girl leap desperately from a horse-drawn carriage in a vain attempt to escape her captors. Can the lad stand by and let her be caught again? Of course not, because he's...Dodger. Seventeen-year-old Dodger may be a street urchin, but he gleans a living from London's sewers, and he knows a jewel when he sees one. He's not about to let anything happen to the unknown girl - not even if her fate impacts the most powerful people in England.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place which might sound and smell very much like our own, but which looks completely different. Collected together for the first time are seven full-cast BBC Radio dramatisations of Terry Pratchett’s novels, with star-studded casts including Martin Jarvis, Sheila Hancock, Anton Lesser, Philip Jackson, Alex Jennings and Mark Heap.

The Western Front, 1916. Private Percy Blakeney wakes up. He is lying on fresh spring grass. He can hear birdsong and the wind in the leaves. Where have the mud, blood, and blasted landscape of no-man's-land gone? For that matter, where has Percy gone? Madison, Wisconsin, 2015. Police officer Monica Jansson is exploring the burned-out home of a reclusive - some say mad, others allege dangerous - scientist who seems to have vanished. Sifting through the wreckage, Jansson find a curious gadget.

At six years old, Terry was told by his headteacher that he would never amount to anything. He spent the rest of his life proving that teacher wrong. At 66, Terry had lived a life full of achievements: becoming one of the UK's best-selling writers, winning the Carnegie Medal and being awarded a knighthood for services to literature. Following his untimely death from Alzheimer's disease, the mantle of completing Terry's memoir was passed to Rob Wilkins, his former assistant, friend and now head of the author's literary estate.

When The Sandman, also known as Lord Morpheus - the immortal king of dreams, stories and the imagination - is pulled from his realm and imprisoned on Earth by a nefarious cult, he languishes for decades before finally escaping. Once free, he must retrieve the three “tools” that will restore his power and help him to rebuild his dominion, which has deteriorated in his absence.

The study of sexual physiology has been a paying career or a diverting sideline for scientists as far-ranging as Leonardo da Vinci and James Watson. The research has taken place behind the closed doors of laboratories, brothels, MRI centers, pig farms, sex-toy R&D labs, and Alfred Kinsey's attic.

Mary Roach, "The funniest science writer in the country", devoted the past two years to stepping behind those doors. In Bonk, Roach shows us how and why sexual arousal and orgasm can be so hard to achieve and what science is doing to slowly make the bedroom a more satisfying place.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but which looks completely different. Particularly as it’s carried though space on the back of a giant turtle (sex unknown). It plays by different rules. But then, some things are the same everywhere. The Disc’s very existence is about to be threatened by a strange new blight: the world’s first tourist, upon whose survival rests the peace and prosperity of the land.

Things have been going pretty badly for Theo Bernstein. An unfortunate accident at work has lost him his job (and his work involved a Very Very Large Hadron Collider, so he's unlikely to get it back). His wife has left him. And he doesn't have any money. Before Theo has time to fully appreciate the pointlessness of his own miserable existence, news arrives that his good friend, a renowned physicist and Nobel laureate, has died. By leaving the apparently worthless contents of his safety deposit box to Theo, however, the professor has set him on a quest of epic proportions.

When Brendan Doyle is flown from America to London to give a lecture on Samuel Taylor Coleridge, little does he expect that he will soon be traveling through time and meeting the poet himself. But Brendan could do without being stranded penniless in the teeming, thieving London of 1810.

He's not just any thief. He’s the greatest thief of the age - and he’s also a wizard. And with the help of his partners - a swordsman with the most powerful magic sword in the world but no magical ability of his own, and a demonseed who can step through shadows and punch through walls - he’s going to put his plan into effect. The first step is to increase the size of the bounty on his head, so he’ll need to steal some big things. But he’ll start with somethingsmall. Something like a king....

Harry Potter has never even heard of Hogwarts when the letters start dropping on the doormat at number four, Privet Drive. Addressed in green ink on yellowish parchment with a purple seal, they are swiftly confiscated by his grisly aunt and uncle. Then, on Harry's eleventh birthday, a great beetle-eyed giant of a man called Rubeus Hagrid bursts in with some astonishing news: Harry Potter is a wizard, and he has a place at Hogwarts School of Witchcraft and Wizardry. An incredible adventure is about to begin!

Molly Moon returns...and bumps into earlier versions of herself, four of them, to be exact, all kidnapped and transported back in time to nineteenth-century India by Molly's most fearsome nemesis yet, an insane maharaja. Molly foiled his plans once already, by stopping Primo Cell from becoming president of the United States. This time around, the maharaja is determined to alter the course of history. The only thing standing in his way is Molly and her brave pug, Petula.

Cat doesn't mind living in the shadow of his sister, Gwendolen, the most promising young witch ever seen on Coven Street. But trouble starts brewing the moment the two orphans are summoned to live in Chrestomanci Castle. Frustrated that the witches of the castle refuse to acknowledge her talents, Gwendolen conjures up a scheme that could throw whole worlds out of whack.

"You have two days to pass your audition. You better pass it, feller. You’re joining the circus. Ain’t that the best news you ever got?" Delivered by a trio of psychotic clowns, this ultimatum plunges Jamie into the horrific alternate universe that is the centuries-old Pilo Family Circus, a borderline world between Hell and Earth from which humankind’s greatest tragedies have been perpetrated. Yet in this place - peopled by the gruesome, grotesque, and monstrous - where violence and savagery are the norm, Jamie finds that his worst enemy is himself.

The city of Bulikov once wielded the powers of the gods to conquer the world, enslaving and brutalizing millions - until its divine protectors were killed. Now Bulikov has become just another colonial outpost of the world's new geopolitical power, but the surreal landscape of the city itself - first shaped, now shattered, by the thousands of miracles its guardians once worked upon it - stands as a constant, haunting reminder of its former supremacy. Into this broken city steps Shara Thivani.

With tales from Laird Barron, Stephen King, John Langan, Peter Straub, and many others, and featuring Datlow’s comprehensive overview of the year in horror, now, more than ever, The Best Horror of the Year provides the petrifying horror fiction readers have come to expect - and enjoy.

The profoundly original and wildly entertaining short stories of a legendary Twilight Zone writer. It is only natural that Charles Beaumont would make a name for himself crafting scripts for The Twilight Zone - for his was an imagination so limitless it must have emerged from some other dimension. Perchance to Dream contains a selection of Beaumont's finest stories, including five that he later adapted for Twilight Zone episodes.

An army is gathering; thousands of giants, ogres, and other creatures are joining forces from all across the Desolate Lands, united, for the first time in history, under one, black banner. By the spring, or perhaps sooner, the Nameless One and his forces will be at the walls of the great city of Avendoom.

In the absurd land of Nth, Thisby Thestoop can be found within the forlorn walls of Castle Grimstone, down the precarious steps of the Black Mountain dungeon, up to her nose in griffon toenails, gnoll spittle, and troll meat (to give to them, not made of them). When the prince and princess arrive for a Royal Inspection, the much too good-looking Princess Iphigenia winds up lost in the tunnels of the dungeon - without her guards, her staff, or her younger twin brother - and it's up to Thisby to guide the princess safely.

Hot on the heels of Gardner Dozois's acclaimed anthology The Book of Swords comes this companion volume devoted to magic. How could it be otherwise? For every Frodo, there is a Gandalf... and a Saruman. For every Dorothy, a Glinda... and a Wicked Witch of the West. What would Harry Potter be without Albus Dumbledore... and Severus Snape? Figures of wisdom and power, possessing arcane, often forbidden knowledge, wizards and sorcerers are shaped - or misshaped - by the potent magic they seek to wield.

Sancia Grado is a thief, and a damn good one. And her latest target, a heavily guarded warehouse on Tevanne’s docks, is nothing her unique abilities can’t handle. But unbeknownst to her, Sancia’s been sent to steal an artifact of unimaginable power, an object that could revolutionize the magical technology known as scriving. The Merchant Houses who control this magic - the art of using coded commands to imbue everyday objects with sentience - have already used it to transform Tevanne into a vast, remorseless capitalist machine.