Years before they served together on board the "U.S.S. EnterpriseTM, Commander William Riker and ship's counselor Deanna Troi had a tempestuous love affair on her home planet of Betazed. Now, their passions have cooled and they serve together as friends. Yet the memories of that time linger and Riker and Troi remain "Imzadi - a powerful Betazoid term that describes the enduring bond they still share. During delicate negotiations with an aggressive race called the Sindareen Deanna Troi mysteriously falls ill and dies. But her death is only the beginning of the adventure for Commander Riker, an adventure that will take him across time, pit him against one of his closest friends, and force him to choose between Starfleet's strictest rule and the one he calls "Imzadi.

Fourteen-year-old Jason faces an identity crisis after discovering that he is the son of aliens who stayed on earth following a botched invasion mission.

*** USA Today bestseller *** The year is 2066 and the world is oblivious to the threat it faces. The fate of humanity lies on the shoulders of Burt Radcliffe, the new head of NASA's Near Earth Object program. He's been rushing the completion of DefenseNet, a ring of satellites that are both part of an early-warning system as well as the means to eliminate incoming threats. Yet Burt knows that despite the world's best efforts, nothing can be done about the alert he's just received. Coming out of deep space is a danger that's been approaching since the dawn of time. A black hole. An unstoppable threat that promises death for all in its wake. Dave Holmes was a modern-day Einstein. As the original architect of DefenseNet, he'd had visions of this Primordial Threat before he disappeared, yet he'd left behind no details on how the problem might be solved. Can Holmes be found, and if so, will his solution even work? The world has less than a year to find out.

"Simon, Kat, Busara, and Elvis know too much about the Company's dark secrets and the real-life consequences its technology is capable of. To save humanity and shut it down forever though, Simon must first survive the most harrowing trial yet--OtherLife--the next phase of gaming, and a complete reality reboot"--

"After discovering terrifying information about Otherworld, the Company's high-tech VR gaming experience, Simon and his friends are on the run, searching for Simon's old roommate. He may just be the key to shutting the Company down, although if they don't find him in time, it may be too late for not only them, but for all of humanity"--

Sister Emily's Lightship and Other Stories is Jane Yolen's first collection of short stories written for adults. It includes the award-winning title story, as well as three new, never-before published, works.

There were six of them. Professional men and their waiter. They gather at the Milano Restaurant once a month for good food and good conversation. But lately the Black Widowers have added a new entertainment to their meetings. They have begun to solve mysteries, murders, and conspiracies of seemingly impossible dimensions -- book cover.

Libro usado en buenas condiciones, por su antiguedad podria contener señales normales de uso

Enter the wondrous world of Isaac Asimov, where the sky is not the limit--only the beginning! In this, his 23rd collection of essays, Asimov transports the reader from the earth's core to the farthest reaches of outer space. A captivating, scientific smorgasbord.

In Harry Turtledove's The Gladiator, the Soviet Union won the Cold War. The Russians were a little smarter than they were in our own world, and the United States was a little dumber and a lot less resolute. Now, more than a century later, the world's gone Communist, and capitalism is a bad word. For Gianfranco and his friend Annarita, a couple of teenagers growing up in Milan, life in a heavily regimented, surveillance-rich command economy is just plain dreary. The eventual withering-away of the state doesn't look like it's going to happen anytime soon. Annarita's a hard-working student and a member of the Young Socialists' League. Gianfranco is a lot less motivated--but on the other hand, his father's a Party apparatchik. The biggest excitement in their lives is a wargame shop called The Gladiator, which runs tournaments, and stocks marvelous complex games you can't find anywhere else. Then, abruptly, the shop is shut down. Someone's figured out that The Gladiator's games are teaching counterrevolutionary capitalist principles. The Security Police are searching high and low for the shop's proprietors, who've not only vanished into thin air, but have left behind sets of fingerprints that aren't in the records of any government on earth. Only one staffer is left: Gianfranco and Annarita's friend Eduardo. He's on the run, and he comes to them in secret with an astonishing story: he's a time trader from our own timeline, accidentally left behind when the store was evacuated. The only way Eduardo can get home to his own timeline is if Gianfranco and Annarita can help him reach one of the other time trader sites in this world--and the Security Police will be on their tails all the way there.

Kurt Vonnegut, Ray Bradbury, Piers Anthony, and John Heidenry are among the authors of experimental and various stories in the furthest reaches of the mind, time, and space

The winner of a Nebula and three Hugos invites readers to view his gallery of very unusual portraits--some bizarre, some touching, all unforgettable. Martin is well-known for his television writing for such programs as The Twilight Zone and Beauty and the Beast.

Running from poverty and hopelessness, Ramón Espejo boarded one of the great starships of the mysterious, repulsive Enye. But the new life he found on the far-off planet of São Paulo was no better than the one he abandoned. Then one night his rage and too much alcohol get the better of him. Deadly violence ensues, forcing Ramón to flee into the wilderness. Mercifully, almost happily alone—far from the loud, bustling hive of humanity that he detests with sociopathic fervor—the luckless prospector is finally free to search for the one rich strike that could make him wealthy. But what he stumbles upon instead is an advanced alien race in hiding: desperate fugitives, like him, on a world not their own. Suddenly in possession of a powerful, dangerous secret and caught up in an extraordinary manhunt on a hostile, unpredictable planet, Ramón must first escape . . . and then, somehow, survive. And his deadliest enemy is himself.

Hidden Talents is the first novel in a hit supernatural duology for young readers by award-winning author David Lubar. This hilarious coming-of-age-with-powers story starring the misfits at Edgeview Alternative School was shortlisted for the Printz Award and is now available in trade paperback. When thirteen-year-old Martin Anderson arrives at the Edgeview Alternative School, it's the end of the road. Literally. He's been expelled from every other school. Edgeview is the last stop. A warehouse for the system's rejects. Martin fits right in. Everyone has given up on Martin. Even Martin. But at Edgeview Martin falls in with a group of five outsiders who make the other Edgeview rejects appear gifted by comparison. He makes a remarkable discovery: each of his friends possesses a remarkable talent. One is telekinetic. Another is empathic. Others have psychic abilities. Martin thinks these talents make them special. They think it makes them freaks. Martin has one shot to convince them otherwise. " Hidden Talents provides us with a glimpse of David Lubar as a writer whose comic talent is matched by his ability to write with sensitivity and power about adolescents." — The Alan Review

Signet / New American Library, 1977. Paperback original novel, 1st edition. A tale of a world where children must choose the gender they are to become, and one child's decision may decide her world's fate. Nominated for the Nebula Award.

"Still reeling from the alien plagues that killed two-thirds of the planet's population, humanity now confronts the most deadly enemy Earth has ever known... the giant, man-eating Chtorr. Lieutenant James McCarthy has grown to manhood under the shadow of the terrifying invasion of the Chtorr. As a student, he learned all he could to understand their alien behavior. As a Special Forces commando, he made violent first contact. Now this battle-hardened warrior faces a profound challenge. Captured by an anarchistic band of men and women known as renegades, McCarthy must secretly gather vital information while fighting indoctrination into their cult... which serves and worships the Chtorr."--Back cover.

Bestselling, award-winning futurist David Brin returns to globe-spanning, high concept SF with Existence. Gerald Livingston is an orbital garbage collector. For a hundred years, people have been abandoning things in space, and someone has to clean it up. But there's something spinning a little bit higher than he expects, something that isn't on the decades' old orbital maps. An hour after he grabs it and brings it in, rumors fill Earth's infomesh about an "alien artifact." Thrown into the maelstrom of worldwide shared experience, the Artifact is a game-changer. A message in a bottle; an alien capsule that wants to communicate. The world reacts as humans always do: with fear and hope and selfishness and love and violence. And insatiable curiosity. This edition of the book is the deluxe, tall rack mass market paperback.