Alla ricerca dei sei frammenti della Chiave del Tempo, il Dottore, Romana e K-9 ne individuano uno sul pianeta Calufrax. Atterrano nel punto giusto... ma sul pianeta sbagliato! Sono infatti giunti su Zanak, un pianeta prospero e felice. Praticamente perfetto. Ma dev'esserci per forza qualcosa di sbagliato, se non c'è nulla di sbagliato, pensa il Dottore. E infatti Zanak nasconde un segreto...

Ashildr, a young Viking girl, died helping the Doctor and Clara to save the village she loved. And for her heroism, the Doctor used alien technology to bring her back to life. Ashildr is now immortal – The Woman Who Lived. Since that day, Ashildr has kept journals to chronicle her extraordinary life. The Legends of Ashildr is a glimpse of some of those stories: the terrors she has faced, the battles she has won, and the treasures she has found. These are tales of a woman who lived longer than she should ever have lived – and lost more than she can even remember. An original novel featuring the Twelfth Doctor as played by Peter Capaldi, and Ashildr as played by Maisie Williams.

The single most important book on wetlands, newly expanded and updated

Wetlands is the definitive guide to this fragile ecosystem, providing the most comprehensive coverage and in-depth information available in print. Recently updated and expanded, this latest edition contains brand new information on Wetland Ecosystem Services and an updated discussion on Wetland, Carbon, and Climate Change and Wetland Creation and Restoration. Due to popular demand, the authors have brought back five streamlined chapters on wetland ecosystems that had been removed from previous editions, and provided more robust ancillary materials including an online color photo gallery, PowerPoint slides, and several video case studies.

As nature's kidneys, wetland ecosystems help the environment process toxins and excess fertilizers and maintain the relative health of our aquatic ecosystems. As the understanding of their importance grows, their management and ecology have gained increased attention and have become an area of professional specialization over the past two decades. This book gives readers a solid understanding of wetlands, how they work, what they do, and why the Earth can't live without them.

• Understand wetlands' role in the ecosystem, from local to global scales
• Appreciate the fact that wetlands may be the most logical and economical way to sequester carbon from the atmosphere
• Discover the unique characteristics that make wetlands critically important for improving water quality, reducing storm and flood damage, and providing habitat to support biodiversity
• Learn how wetlands are being managed or destroyed around the globe but also how we can create and restore them
• Examine the ways in which climate change is affecting wetland ecosystems and wetland ecosystems affect climate change

Wetlands are crucial to the health of the planet, and we've only begun to realize the magnitude of the damage that has already been done as we scramble to save them. A generation of ecologists, ecological engineers, land use planners, and water resource managers worldwide owe their knowledge of the wetlands to this book – for the next generation to follow in their footsteps,Wetlands 5^th edition is the quintessential guide to these critical systems.

A blackly comic crime novel about a one-man crusade to rid the internet of haters, flamers, trolls and vaguebookers... even if he has to kill to do it.

Is there someone online who really annoys you? Who is always bragging, posting too many pictures and just doesn't get jokes? Look at your Twitter feed, don’t you get cross at the endless rage, bigotry and the pleading for celebrity retweets? Meet Dave. He decides that unfollowing someone just isn't enough. He's determined to make the internet a nicer place, and he won't stop at murder in order to achieve it. When he kills his best friend's girlfriend, he isn't planning on changing the world. She was just really annoying on Facebook. But soon Dave realises he’s being manipulated. A conspiracy are using him to gain control of something dark forming at the heart of the world wide web...

'Release the Doctor - or the killing will start.'

An asteroid in the furthest reaches of space - the most secure prison for the most dangerous of criminals. The Governor is responsible for the worst fraudsters and the cruellest murderers. So he's certainly not impressed by the arrival of the man they're calling the most dangerous criminal in the quadrant. Or, as he prefers to be known, the Doctor.

What does impress the Governor is the way the new prisoner immediately sets about trying to escape. And keeps trying. Finally, he sends for the Doctor and asks him why? But the answer surprises even the Governor. And then there's the threat - unless the Governor listens to the Doctor, a lot of people will die.

Who is the Doctor and what's he really doing here? Why does he want to help the Governor? And who is the young woman who comes every day to visit him, only to be turned away by the guards?

When the killing finally starts, the Governor begins to get his answers...

Newly discovered entries and drawings in William Shakespeare’s journals reveal for the first time the astounding relationship between the great Bard and the Doctor.

Since his first adventure in 1963, the Doctor has enjoyed many encounters with William Shakespeare. Now, BBC Books has rediscovered notebooks, long thought lost, compiled by the Bard in which he divulges the influential role the Doctor played in his creative life. Here are the original notes for Hamlet, including a very different appearance by the ghost; early versions of great lines (“To reverse or not to reverse the polarity of the neutron flow”); the true story of how the faeries of A Midsummer Night’s Dream were first imagined; stage directions for plays adjusted to remove references to a mysterious blue box; and much, much more.