Three witches gathered on a lonely heath. A king cruelly murdered, his throne usurped by his ambitious cousin. A child heir and the royal crown, both missing.

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.

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.

Finding himself alone on a desert island when everything and everyone he knows and loved has been washed away in a huge storm, Mau is the last surviving member of his nation. He's also completely alone - or so he thinks until he finds the ghost girl. She has no toes, wears strange lacy trousers like the grandfather bird and gives him a stick which can make fire. Daphne, sole survivor of the wreck of the Sweet Judy, almost immediately regrets trying to shoot the native boy.

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 that looks completely different. It plays by different rules. Certainly it refuses to succumb to the quaint notion that universes are ruled by pure logic and the harmony of numbers. But just because the Disc is different doesn't mean that some things don't stay the same.

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.... That's the old story everyone knows and loves (even if they don't really believe it). But now the Carpet is home to many different tribes and peoples and there's a new story in the making. The story of Fray, sweeping a trail of destruction across the Carpet, and two brothers, who set out on an adventure to end all adventures.

In Ask a Historian, the author, BBC podcaster and public historian Greg Jenner provides answers to things you always wondered about but didn't know who to ask. Responding to 50 genuine questions from the public, Greg whisks you off on an entertaining tour through the ages, revealing the best and most surprising stories, facts and historical characters from the past. 

One Thursday lunchtime the Earth gets unexpectedly demolished to make way for a new hyperspace bypass. For Arthur Dent, who has only just had his house demolished that morning, this seems already to be more than he can cope with.

Prepare to meet the wicked progeny of the master of modern horror. In Lovecraft's Monsters, H. P. Lovecraft's most famous creations--Cthulhu, Shoggoths, Deep Ones, Elder Things, Yog-Sothoth, and more--appear in all their terrifying glory. Each story is a gripping new take on a classic Lovecraftian creature. Contributors include such literary luminaries as Neil Gaiman, Joe R. Lansdale, Caitlin R. Kiernan, Karl Edward Wagner, Elizabeth Bear, and Nick Mamatas.

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!

It’s not easy making the career jump from office-supplies-store middle manager to heroic interdimensional adventurer. At least, Jason tries to be heroic, but it's hard to be good when all your powers are evil. He’ll face off against cannibals, cultists, wizards, monsters...and that’s just on the first day. He’s going to need courage, he’s going to need wit, and he’s going to need some magic powers of his own. But first, he’s going to need pants.

A magical serial killer is on the loose, and gelatinous, otherworldly creatures are infesting the English countryside. Which is making life for the Ministry of Occultism difficult, because magic is supposed to be their best kept secret. After centuries in the shadows, the Ministry is forced to unmask, exposing the country's magical history - and magical citizens - to a brave new world of social media, government scrutiny, and public relations.

According to mythology, mankind used to live in 'The Tranquiline Halls': heaven. But then the Voidbringers assaulted and captured heaven, casting out God and men. Men took root on Roshar, the world of storms, but the Voidbringers followed. The Almighty gave men powerful suits of armor and mystical weapons, the Shardblades. Led by 10 angelic Heralds and 10 orders of knights known as Radiants, mankind finally won (or so the legends say).

The fourth book in the Science of Discworld series, and this time around dealing with the really big questions, Terry Pratchett’s brilliant new Discworld story Judgement Day is annotated with very big footnotes (the interleaving chapters) by mathematician Ian Stewart and biologist Jack Cohen, to bring you a mind-mangling combination of fiction, cutting-edge science and philosophy.Marjorie Daw is a librarian, and takes her job – and indeed the truth of words – very seriously. She doesn’t know it, but her world and ours – Roundworld – is in big trouble.