Until the morning he wakes up and can't see himself in the mirror. Not blind, not dreaming. Bobby is just plain invisible... There doesn't seem to be any rhyme or reason to Bobby's new condition; even his dad the physicist can't figure it out. For Bobby that means no school, no friends, no life. He's a missing person. Then he meets Alicia. She's blind, and Bobby can't resist talking to her, trusting her. But people are starting to wonder where Bobby is. Bobby knows that his invisibility could have dangerous consequences for his family and that time is running out. He has to find out how to be seen again before it's too late.

    Were they a blessing, as their beauty suggested, or a deadly, inexplicable threat? A boy with a microscope was just as likely to come up with the answer as all the acknowledged experts in any known kind of science, so somehow it seemed natural for two 'ordinary' boys, Scott and Bem, to join forces with an ex-spaceman against the frightening efforts of the ruthless General Harman to destroy the Trillions, no matter what the cost.This tense and highly original book is by the author of six other exciting favourites, 'Space Hostages', 'Grinny', 'Time Trap', 'A rag, a bone and a Hank of Hair' and 'Wheelie in the Stars'.

    Earth has been destroyed by a comet, and only a few hundred scientists and their children – among them Petra and her family – have been chosen to journey to a new planet. They are the ones who must carry on the human race.Hundreds of years later, Petra wakes to this new planet – and the discovery that she is the only person who remembers Earth. A sinister Collective has taken over the ship during its journey, bent on erasing the sins of humanity's past. They have systematically purged the memories of all aboard – or purged them altogether.Petra alone now carries the stories of our past, and with them, any hope for our future. Can she make them live again?

    Better tomorrow than today." Harder work means the citizens of Aramanth can keep moving forward to improved life stations--from Gray tenements and Orange apartments, upwards to glorious mansions of White. Only some families, like the Haths, believe more in ideas and dreams than in endless toil and ratings. When Kestrel Hath decides she is through with the Aramanth work ethic, she is joined in her small rebellion by her twin brother Bowman and their friend Mumpo. Together, they set the orderly city on its ear by escaping Aramanth's walls for an adventure that takes them from city sewers to desert sandstorms. Guided by an archaic map, they know that if they can find the voice of the Wind Singer, an ancient and mysterious instrument that stands in the center of Aramanth, they can save their people from their dreamless existence. But the voice is guarded by the dreaded Morah and its legion of perfect killing machines, the Zars. Are three ragtag kids any match for an army of darkness?

    Every spring the residents of his town take down the snow they've stuck to their windows and put up flowers. Every morning his family gathers around their television and votes, like everyone else, for whatever matter of national importance the president has on the table. Today, it is the color of his drapes. It's business as usual under the protective dome of suburb HM1.And it's all about to come crashing down.Because a stranger has come to take away all the little children, including Martin's sister, Cassie, and no one wants to talk about where she has gone. The way Martin sees it, he has a choice. He can remain in the dubious safety of HM1, with danger that no one wants to talk about lurking just beneath the surface, or he can actually break out of the suburb, into the mysterious land outside, rumored to be nothing but blowing sand for miles upon miles.Acclaimed author Clare B. Dunkle has crafted a fresh and fast-paced science-fiction thriller, one that challenges her characters -- and her readers -- to look closer at the world they take for granted.

    Yet, after he had been chosen to become an Ol-zhaan, he made surprising discoveries and was exposed to dangers different form any he had envisioned. The world of Green-Sky was not what he and the Kindar people had thought. This science fiction fantasy was first published in 1975 and is the first book of the "Green-Sky Trilogy," It was a Junior Library Guild selection that became the basis for the video game, "Below The Root,"

    Leonard's life at his new junior high is just barely tolerable until he becomes friends with the unusual Alan and with him shares an extraordinary adventure.

    While exploring the jungle outside the academy, Jacen and Jaina uncover the remains of an enemy fighter plane crashed years before in the years of the first great war.

    It worked…but now the storerooms are almost out of food, crops are blighted, corruption is spreading through the city and worst of all—the lights are failing. Soon Ember could be engulfed by darkness…But when two children, Lina and Doon, discover fragments of an ancient parchment, they begin to wonder if there could be a way out of Ember. Can they decipher the words from long ago and find a new future for everyone? Will the people of Ember listen to them?

    On that Sad Birthday, the child is the object of an obscene harvest resulting in the construction of a machine like creature whose sole purpose is to kill.The mysterious Shade — once a man, but now more like the machines he fights — recruits the few children fortunate enough to escape. With luck, cunning, and skill, four of Shade's children come closer than any to discovering the source of the Overlords' power — and the key to their downfall. But the closer the children get, the more ruthless Shade seems to become ...

    Cooper's highly acclaimed series—Over Sea, Under Stone; The Dark Is Rising; Greenwitch; The Grey King; and Silver on the Tree—is now available in its entirety for the first time in an attractive, sturdy boxed set that's perfect for gift giving.

    . . isn't it?The alien spaceship is in his sights. His finger is on the Fire button. Johnny Maxwell is about to set the new high score on the computer game Only You Can Save Mankind.Suddenly, a message appears:We wish to talk. We surrender.But the aliens aren't supposed to surrender—they're supposed to die!

    He answers a distress radio call from Peewee, scrawny rag doll-clutching genius aged 11. With the comforting cop Mother Thing, three-eyed tripod Wormfaces kidnap them to the Moon and Pluto.

    After spending almost a year with cave people from an earlier time, a young girl is transported back to the present greatly changed, both by her experience and by the fact that no one believes her.

    . . and some of its lost and broken people, too–including Brokkenbroll, boss of the broken umbrellas; Obaday Fing, a tailor whose head is an enormous pin-cushion, and an empty milk carton called Curdle. Un Lun Dun is a place where words are alive, a jungle lurks behind the door of an ordinary house, carnivorous giraffes stalk the streets, and a dark cloud dreams of burning the world. It is a city awaiting its hero, whose coming was prophesied long ago, set down for all time in the pages of a talking book. When twelve-year-old Zanna and her friend Deeba find a secret entrance leading out of London and into this strange city, it seems that the ancient prophecy is coming true at last. But then things begin to go shockingly wrong.