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Critical Threshold
- The Daedalus Mission, Book 2
- Narrated by: Jack Tracksler
- Length: 7 hrs
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Critical Threshold
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Publisher's summary
The planet called Dendra seemed too good to be true: one vast forest world, marvelous climate, few dangerous beasts, a balanced hospitable ecology -- all should have speed out a good place for a human colony.
But the original survey team had registered doubts, listed it as borderline without further explanation. Nevertheless the politicians had okayed it, and a colony had been panded there ... and 150 Earth years had passed without anyone hearing from it.
Not the recontact vessel Daedalus was coming to check up -- and they found the climate as marvelous as before, the forest green and friendly, and the colony an inexplicable disaster. There was a biological and psychological puzzle that had to be solved for the sake of all human world -- and for the drew of the Daedalus, it was either crack it or crack up!
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Performance4.5 out of 5 stars 28
-
Story4.5 out of 5 stars 28
Robot believers at the far end of the galaxy endeavor to create a true religion, but their efforts could be shattered by a shocking revelation. Far in the future, on the remote planet End of Nothing, sentient robots are engaged in a remarkable enterprise. They call their project Vatican-17: an endeavor to create a truly universal religion presided over by a pope, whose extreme godliness and infallible artificial intelligence are fed by telepathic human Listeners who psychically delve into the mysteries of the universe.
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5 out of 5 stars
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Great Early Science Fiction (Not The Best Title)
- By Blake on 11-02-23
By: Clifford Simak
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The Fire Seekers
- The Babel Trilogy, Book 1
- By: Richard Farr
- Narrated by: Scott Merriman
- Length: 9 hrs and 52 mins
- Unabridged
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Overall4 out of 5 stars 181
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Performance4.5 out of 5 stars 158
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Story4 out of 5 stars 160
An undeciphered language in Crete. A rash of mysterious disappearances, from Bolivia to Japan. An ancient warning at the ruins of Babel. And a new spiritual leader, who claims that human history as we understand it is about to come to an end.
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5 out of 5 stars
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A fresh story!
- By AB on 02-08-15
By: Richard Farr
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A Beautiful Friendship
- Star Kingdom, Book 1
- By: David Weber
- Narrated by: Khristine Hvam
- Length: 10 hrs and 55 mins
- Unabridged
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Overall4.5 out of 5 stars 2,416
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Performance4.5 out of 5 stars 2,139
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Story4.5 out of 5 stars 2,145
Stephanie Harrington had always expected to be a forest ranger on her homeworld of Meyerdahl until her parents relocated to the frontier planet of Sphinx in the far distant Star Kingdom of Manticore. It should have been the perfect new home - a virgin wilderness full of new species of every sort, just waiting to be discovered. But Sphinx is a far more dangerous place than ultra-civilized Meyerdahl, and Stephanie's explorations come to a sudden halt when her parents lay down the law: no trips into the bush without adult supervision!
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2 out of 5 stars
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Painfully simplistic YA lit.
- By David on 03-19-13
By: David Weber
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Black Rain
- Hawker & Laidlaw Series, Book 1
- By: Graham Brown
- Narrated by: Jeffrey Kafer
- Length: 12 hrs and 10 mins
- Unabridged
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Overall4.5 out of 5 stars 145
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Performance4.5 out of 5 stars 130
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Story4.5 out of 5 stars 130
Covert government operative Danielle Laidlaw leads an expedition into the deepest reaches of the Amazon in search of a legendary Mayan city. Assisted by a renowned university professor and protected by a mercenary named Hawker, her team journeys into the tangled rain forest - unaware that they are replacements for a group that vanished weeks before, and that the treasure they are seeking is no mere artifact but a breakthrough discovery that could transform the world.
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4 out of 5 stars
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My disappointment regarding Black Rain.
- By Chris on 03-03-20
By: Graham Brown
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Lilith: A Snake in the Grass
- The Four Lords of the Diamond, Book 1
- By: Jack L. Chalker
- Narrated by: Kirby Heyborne
- Length: 10 hrs and 29 mins
- Unabridged
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Overall4.5 out of 5 stars 141
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Performance4.5 out of 5 stars 129
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Story4.5 out of 5 stars 130
Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited.
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4 out of 5 stars
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A great series if read in its entirety
- By Onix Harbinger on 08-21-18
By: Jack L. Chalker
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Invasion
- Alien Invasion, Book 1
- By: Sean Platt, Johnny B. Truant
- Narrated by: Ray Porter
- Length: 8 hrs and 10 mins
- Unabridged
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Overall4 out of 5 stars 3,575
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Performance4.5 out of 5 stars 3,324
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Story4 out of 5 stars 3,308
They are coming. The countdown has begun. First visible only as blips on a telescope image, the discovery of objects approaching from Jupiter's orbit immediately sets humanity on edge. NASA doesn't even bother to deny the alien ships' existence. The popular Astral space app (broadcasting from the far side of the moon and accessible by anyone with Internet) has already shown the populace what is coming.
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1 out of 5 stars
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"terrible, absolutely terrible"
- By Andre M. Nel on 08-02-18
By: Sean Platt, and others
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The Paths Between Worlds
- By: Paul Antony Jones
- Narrated by: Kate Reading
- Length: 11 hrs and 29 mins
- Unabridged
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Overall4 out of 5 stars 3,048
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Performance4.5 out of 5 stars 2,765
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Story4 out of 5 stars 2,755
For Meredith Gale, ending her life seems like her only choice, and that choice is the reason she’s dangling by her fingertips from a bridge high above the freezing water of the San Francisco Bay. But someone or some thing has other plans for Meredith, and as her fingers slip from the cold steel of the bridge, a disembodied voice asks her a simple question: “Candidate 13: Do you wish to be saved?” Realizing her mistake too late, Meredith screams “Yes!” and instantly finds herself transported to a mysterious island, alongside hundreds of other Candidates like her.
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4 out of 5 stars
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A whole lot of fun!
- By Jane on 04-16-19
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Distress
- By: Greg Egan
- Narrated by: Adam Epstein
- Length: 14 hrs and 16 mins
- Unabridged
-
Overall4 out of 5 stars 72
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Performance3.5 out of 5 stars 67
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Story4 out of 5 stars 68
Investigative reporter Andrew Worth turns down a documentary on a mysterious new mental illness - "Distress," or acute clinical anxiety syndrome, for another assignment. He's on his way to the artificial island of Stateless, where the world's top physicists are gathering to decide on a new TOE, or Theory of Everything, to replace Einstein's outmoded legacy.
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3 out of 5 stars
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A good book ruined by a poor (and strange) reading
- By David on 12-06-13
By: Greg Egan
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Thornbear
- Champions of the Dawning Dragons, Book 1
- By: Michael G. Manning
- Narrated by: Derek Perkins
- Length: 11 hrs and 41 mins
- Unabridged
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Overall4.5 out of 5 stars 1,700
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Performance4.5 out of 5 stars 1,573
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Story4.5 out of 5 stars 1,575
Gram lives in the long shadow cast by his father, the late hero Dorian Thornbear. Struggling to find his place in a world where politics and wizardry appear to have replaced the need for men of might and main, he must make his own mark. Trapped within the seemingly safe confines of Castle Cameron, Gram faces both love and tragedy. His choices will not only define himself but serve to remind others of his family's legacy and the reason only a fool threatens those a Thornbear protects.
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5 out of 5 stars
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An excellent story by an exceptional author
- By JW on 02-28-15
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Beyond the Aquila Rift
- By: Alastair Reynolds
- Narrated by: Tom Dheere
- Length: 1 hr and 11 mins
- Unabridged
-
Overall4.5 out of 5 stars 437
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Performance4 out of 5 stars 359
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Story4.5 out of 5 stars 361
Beyond the Aquila Rift: It's shorthand for the trip no one ever hopes to make by accident. The one that will screw up the rest of your life, the one that creates the ghosts you see haunting the shadows of company bars across the whole Bubble. Men and women ripped out of time, cut adrift from families and lovers by an accident of an alien technology we use but rarely comprehend.
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3 out of 5 stars
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Great story, mediocre audio book.
- By Amazon Customer on 04-17-12
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In the Ocean of Night
- Galactic Center, Book 1
- By: Gregory Benford
- Narrated by: Maxwell Caulfield
- Length: 12 hrs and 32 mins
- Unabridged
-
Overall3.5 out of 5 stars 316
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Performance4 out of 5 stars 273
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Story3.5 out of 5 stars 276
It is 2019. NASA astronaut Nigel Walmsley is sent on a mission to intercept a rogue asteroid on a collision course with Earth. Ordered to destroy it, he instead discovers that it is actually the shell of a derelict space probe - a wreck with just enough power to emit a single electronic signal….
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1 out of 5 stars
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Like some Space with your Soaps?
- By Bradley on 05-15-12
By: Gregory Benford
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West of Eden
- By: Harry Harrison
- Narrated by: Christian Rummel
- Length: 16 hrs and 40 mins
- Unabridged
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Overall4.5 out of 5 stars 165
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Performance4.5 out of 5 stars 148
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Story4.5 out of 5 stars 149
Sixty-five million years ago, a disastrous cataclysm eliminated three quarters of all life on Earth. Overnight, the age of dinosaurs ended. The age of mammals had begun. But what if history had happened differently? What if the reptiles had survived to evolve into intelligent life? In West of Eden, best-selling author Harry Harrison has created a rich, dramatic saga of a world where the descendants of the dinosaurs struggled with a clan of humans in a battle for survival.
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3 out of 5 stars
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Narration is flat and monotonous.
- By Sande on 06-28-17
By: Harry Harrison
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The Engines of God
- By: Jack McDevitt
- Narrated by: Tom Weiner
- Length: 14 hrs and 54 mins
- Unabridged
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Overall4 out of 5 stars 611
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Performance4 out of 5 stars 483
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Story4 out of 5 stars 489
Humans call them Monument-Makers. An unknown race, they left stunning alien statues scattered on distant planets throughout the galaxy, encoded with strange inscriptions that defy translation. Searching for clues about the Monument-Makers, teams of 23rd century linguists, historians, engineers and archaeologists have been excavating the enigmatic alien ruins on a number of planets, uncovering strange, massive false cities made of solid rock. But their time is running out.
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3 out of 5 stars
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Conceptually intriguing, but uneven writing style
- By Michael G Kurilla on 05-12-11
By: Jack McDevitt
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Worldship: Udo the Digger
- Worldship, Book 1
- By: Joshua Gayou
- Narrated by: R.C. Bray
- Length: 14 hrs and 29 mins
- Unabridged
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Overall4.5 out of 5 stars 1,140
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Performance5 out of 5 stars 1,026
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Story4.5 out of 5 stars 1,025
Udo's biggest problem isn't being a digger (that's low class), or staying drunk (that's damn expensive), or avoiding the Dwergaz (they're monsters), or even pissing off the supposed Gods. It's that his reality...well, it isn't what he thought. And now, he can't even afford to drink because his so-called friend Nicz is cutting into his business, digging up tin, iron, and copper. So Udo forms a new plan: clay. After all, clay jars are used to store everything: meat, herbs, and, his personal favorite, ale.
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1 out of 5 stars
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I am confused.
- By Ahkia on 06-02-20
By: Joshua Gayou
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Nine Princes in Amber
- The Chronicles of Amber, Book 1
- By: Roger Zelazny
- Narrated by: Alessandro Juliani
- Length: 5 hrs and 31 mins
- Unabridged
-
Overall4 out of 5 stars 5,429
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Performance4.5 out of 5 stars 4,879
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Story4.5 out of 5 stars 4,900
Amber is the one real world, of which all others including our own Earth are but Shadows. Amber burns in Corwin's blood. Exiled on Shadow Earth for centuries, the prince is about to return to Amber to make a mad and desperate rush upon the throne.
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5 out of 5 stars
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Great book, lame deal!
- By Robert on 08-13-12
By: Roger Zelazny
What listeners say about Critical Threshold
Average customer ratingsReviews - Please select the tabs below to change the source of reviews.
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Overall2 out of 5 stars
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Performance2 out of 5 stars
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Story2 out of 5 stars
- Micheal Reed
- 04-17-16
no story
same thing happens here no story plot too much technical plant information want my money back
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