Imagine having the perfect friend, one who never steals, lies or bullies. Now you can, with the TrooFriend 560, the latest in artificial intelligence! What can go wrong with a robot buddy? Especially one that's developing human characteristics and feelings, and who has just run away with her human?

Who lies? Who tells the truth? Death hangs on the answer... 'Highly recommended, especially for those who like their fantasy subtle but chillingly effective, and populated by characters they can believe in' (Starburst Magazine) Tell a lie and the darkness will find you. Quinn and Piper are twins, but they've never met. A tragic event brings them together, and draws them into a family curse that stretches across centuries. One twin can command the darkness; the other could hold the key to breaking the curse. But when lies become truth and truth looks like lies, who can you believe? Don't miss this startling new book from Teri Terry, queen of the YA psychological thriller! They are trapped, frozen. Waiting. Straining against the wood that holds them. The unwary catch a glimpse now and then - feel their desperate hunger, see a glint of red eyes - and scurry out of the shadows of the wood, back to the light. She's coming; it will be soon. They will run free on the moors again. The Hunt will return. And the ground will run with blood.

Game theory has brought me to this point and I must follow where it leads. Even though this is not a game.Jamie is a sixteen-year-old maths whiz. Summerlee, his older sister, is in the grip of a wild phase. Tensions at home run high.When Summerlee wins a 7.5-million-dollar lottery, she cuts all ties with her family. But money can cause trouble - big trouble. And when Jamie's younger sister Phoebe is kidnapped for a ransom, the family faces a crisis almost too painful to bear.Jamie thinks he can use game theory - the strategy of predicting an opponent's actions - to get Phoebe back. But can he outfox the kidnapper? Or is he putting his own and his sister's life at risk?A brilliant, page-turning YA novel from a superb storyteller.

Passion. Obsession. Revenge. A stunning collection of chilling short stories from the queen of the psychological thriller.

White nights of passion and revenge in St. Petersburg. A bingo-hall tyrant trapped by masked intruders. The sleazy flipside of the international publishing scene.

Nineteen nail-biting, intense and intricately plotted crime stories from one of the UK's greatest psychological thriller writers, this diverse collection demonstrates the scope of Val McDermid's imagination and her immense powers as a storyteller.

Jesse is on a school trip in New York when his subway carriage is rocked by an explosion. When he and three friends crawl out of the wreckage they discover a city in chaos. Streets are deserted. Buildings are in ruins. And the only other survivors are infected with a virus that turns them into horrifying predators. . .

Sig Andersson has a choice to make - use the gun or die. An unforgettable, razor-sharp psychological thriller set in the snowy wilderness of the Arctic Circle. Recipient of a Michael L. Printz Honor 2011, shortlisted for the CILIP Carnegie Medal 2010 and longlisted for the GUARDIAN Children's Fiction Prize 2010. 1910. A cabin north of the Arctic Circle. Fifteen-year-old Sig Andersson is alone. Alone, except for the corpse of his father, who died earlier that day after falling through a weak spot on the ice-covered lake. His sister, Anna, and step-mother, Nadya, have gone to the local town for help. Then comes a knock at the door. It's a man, the flash of a revolver's butt at his hip, and a mean glare in his eyes. Sig has never seen him before but Wolff claims to have unfinished business with his father. As Sig gradually learns the awful truth about Wolff's connection to his father, his thoughts are drawn to a certain box hidden on a shelf in the storeroom, in which lies his father's prized possession - a revolver. As the stakes rise and Wolff begins to close in, Sig's choice is pulled into sharp focus. Should he use the gun?

For fans of Gillian Flynn and Pretty Little Liars, The Darkest Corners is a psychological thriller about the lies little girls tell, and the deadly truths those lies become.

There are secrets around every corner in Fayette, Pennsylvania. Tessa left when she was nine and has been trying ever since not to think about what happened there that last summer. She and her childhood best friend Callie never talked about what they saw. Not before the trial. And certainly not after.

But ever since she left, Tessa has had questions. Things have never quite added up. And now she has to go back to Fayette—to Wyatt Stokes, sitting on death row; to Lori Cawley, Callie’s dead cousin; and to the one other person who may be hiding the truth.

Only the closer Tessa gets to what really happened, the closer she gets to a killer—and this time, it won’t be so easy to run away.