Science Riddles

On Eos, the last survivors of the Long Winter face their greatest challenge yet - and race to unravel the deepest secrets of the grid. The last survivors of the human race escaped a ruined Earth. Their new homeworld - Eos - seemed perfect at first. Warm. Hospitable. Safe from the grid. But everything isn't as it seems. The first colony of settlers - from the Carthage - have disappeared. Their settlement is still there, but everyone is gone. As James digs into the mystery of the lost colony, he discovers a series of spheres, buried on Eos.

The ice is coming. It was the last thing we expected, but the world is freezing. A new ice age has dawned. Billions have fled the glaciers. A cataclysmic war is coming. In orbit, a group of scientists are running the Winter Experiments, a last-ditch attempt to understand why the planet is cooling. None of the climate models they build make sense. But then they discover an anomaly, an unexplained variation in solar radiation...and something else. Close to the burning edge of the sun, they catch a fleeting glimpse of something that shouldn’t be there....

They decimated Earth during the Long Winter. Now the Grid has returned, and they won't stop until the human race is extinct. On a ruined world, humanity's last survivors fight against impossible odds. In their darkest hour, they discover a new hope for survival. But it comes at an unthinkable price, with consequences that will change everything.

After a mysterious global event known only as “The Change”, six strangers wake up in an underground research facility where they learn that they’re part of the Extinction Trials - a scientific experiment to restart the human race. But the Extinction Trials harbors a very big secret. And so does the world outside.

Dr. Sam Anderson is one of the most celebrated scientists in history. Ten years ago, he invented a device that changed the world forever. Now his life is about to be ripped apart—and his own creation may be to blame. One fateful morning, Sam discovers that his girlfriend has been murdered and that his daughter is accused of the crime. Sam believes she's innocent, but he can't prove it. There's only one thing he can do to save his daughter: confess to the crime. And so he does. But in the future, murderers aren't sent to prison. They're sent to the past.

Experts agree that children have a natural inkling towards puzzles, riddles, and brain-teasers. Such challenges quickly grab their attention, make them laugh, and tap into that sense of accomplishment all kids unknowingly strive for. To help your kid rediscover their love of learning, these carefully crafted science riddles will spark their interest in natural sciences and make sure they keep that beautiful sense of wonder.

At the end of the world, a groundbreaking scientific experiment will change everything. Dr. Laura Reynolds had it all. A job she loved. The respect of her peers. Student debt she was slowly chipping away at. And one day, it all went away. She saw the wrong thing—a colleague's mistake. And to escape, he framed her. Laura's only option is to join a secretive research project in Antarctica, where she hopes to keep practicing medicine and one day get her life back. But soon after arriving, she realizes that things aren't what they seem in this advanced facility.

In Atlanta, Dr. Peyton Shaw is awakened by the phone call she has dreaded for years. As the CDC's leading epidemiologist, she's among the first responders to outbreaks around the world. It's a lonely and dangerous job, but it's her life - and she's good at it. This time she may have met her match. In Kenya, an Ebola-like pathogen has infected two Americans. One lies at death's door. With the clock ticking, Peyton assembles her team and joins personnel from the Kenyan Ministry of Health and the WHO.

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?

Long ago, the wizards had vanished from the world, and all knowledge was left hidden in riddles. Morgon, prince of the simple farmers of Hed, proved himself a master of such riddles when he staked his life to win a crown from the dead Lord of Aum.But now ancient, evil forces were threatening him. Shape changers began replacing friends until no man could be trusted. So Morgon was forced to flee to hostile kingdoms, seeking the High One who ruled from mysterious Erlenstar Mountain.Beside him went Deth, the High One's Harper. Ahead lay strange encounters and terrifying adventures.

In the tradition of Simon Winchester and Dava Sobel, The Riddle of the Labyrinth: The Quest to Crack an Ancient Code tells one of the most intriguing stories in the history of language, masterfully blending history, linguistics, and cryptology with an elegantly wrought narrative. When famed archaeologist Arthur Evans unearthed the ruins of a sophisticated Bronze Age civilization that flowered on Crete 1,000 years before Greece's Classical Age, he discovered a cache of ancient tablets, Europe's earliest written records.

Bacca has it all. The most celebrated (and furry) star in the Overworld, he's the person others look to for help building their dungeons, mazes, and castles. He has a girlfriend, LadyBacc, and his most prized possession of all - a diamond ax called Betty. One day Bacca is approached by a mysterious dragon...made entirely of diamonds! The dragon is from a new biome - a secret land few have ever seen - where a special object has been stolen.

Maerad is a girl with a tragic and bitter past, but her powers grow stronger by the day. Now she and her mentor, Cadvan, hunted by both the Light and the Dark, must unravel the Riddle of the Treesong before their fractured kingdom erupts in chaos. The quest leads Maerad over terrifying seas and vast stretches of glacial wilderness, ever closer to the seductive Winterking - ally of her most powerful enemy, the Nameless One. Trapped in the Winterking's icy realm, Maerad must confront what she has suspected all along....

Seventy thousand years ago, the human race almost went extinct. We survived, but no one knows how.

Until now. The countdown to the next stage of human evolution is about to begin, and humanity might not survive this time. The Immari are good at keeping secrets. For 2,000 years, they've hidden the truth about human evolution. They've also searched for an ancient enemy - a threat that could wipe out the human race. Now the search is over.

En route to London from New York, Flight 305 suddenly loses power and crash-lands in the English countryside, plunging a group of strangers into a mysterious adventure that will have repercussions for all of humankind. Struggling to stay alive, the survivors soon realize that the world they've crashed in is very different from the one they left. But where are they? Why are they here? And how will they get back home?

A mysterious psychopath with god-like powers has suddenly appeared in OtherWorld. And every time he destroys an entire city, he leaves behind a calling card: a riddle. With the help of a few old friends, Ian, Alaria, and Stig set out to discover who he is and what he wants. But in order to stop him, they’ll have to play his twisted little game…and not everyone will make it out alive.

By the vow of her father and her own desire, Raederle was pledged to Morgon, Riddle-Master of Hed. But a year had passed since Morgon disappeared on his search for the High One at Erlenstar Mountain, and rumors claimed he was dead. Raederle set out to learn the truth for herself, though her small gift of magic seemed too slight for the perils she must face. The quest led through strange lands and dangerous adventures. Only her growing powers enabled her at last to reach Erlenstar Mountain.

Fourteen-year-old Ronan Boyle is the youngest and lowliest recruit to the secret Garda, an Irish police force that handles the misdeeds of numerous magical creatures. Ronan's parents are in jail, but Ronan is convinced they were framed by the wee people. So, despite his small size, poor eyesight, and social awkwardness, he's determined to learn all he can in the Garda in order to prove his parents' innocence.

The thrilling conclusion to The Extinction Files is finally here! In 2003, the first human genome was sequenced. But the secrets it held were never revealed. The truth was discovered 30 years ago, almost by accident. Dr. Paul Kraus had spent his entire career searching for what he called humanity's lost tribes - human ancestors who had gone extinct. When Kraus compared the DNA samples of the lost tribes with our own, he found a pattern of changes: a code. At the time, the technology didn't exist to unravel what it meant. Kraus hid his work and disappeared.

In the midst of conflict and unrest the Prince of Hed solves the puzzle of his future when he learns to harp the wind, discovers who the shape changers are, and understands his own relationship to Deth, harpist of the wizard Ohm.