Thirteen-year-old Mark Harrison has a week to hike across the desert. He will meet his parents on the other side. By his fourth day, he’s made good time. As he settles in for the night, he gazes up at the stars, feeling completely content. Suddenly, a blue light streams from the sky, jolting Mark into another dimension. Now, in a land filled with strange jungle animals and primitive tribes, Mark desperately battles hunger, armed enemies, and superhuman powers.

Within days of a series of monster solar storms slamming into earth, electrical grids fail and everything in the northern hemisphere with a computer chip ceases functioning. Electricity won't be completely restored for at least a decade, and the result is that everything modern life depends on to function is gone. Chaco is a well-educated freedom fighter on a death list in El Salvador. Having fled to the United States, he is in hiding by working for a wealthy couple as their handyman and gardener. Following the disaster, he reveals his true identity, and convinces his employers and their neighbors to follow him.

EarthCore is the company with the technology, the resources, and the guts to go after the mother lode. Young executive Connell Kirkland is the company's driving force, pushing himself and those around him to uncover the massive treasure. But at three miles below the surface, where the rocks are so hot they burn bare skin, something has been waiting for centuries. Waiting...and guarding. Kirkland and EarthCore are about to find out first-hand why this treasure has never been unearthed.

Pre-med student Coral is on vacation in Idaho when something terrible happens. The black cloud is followed by a wildfire and searing heat that lasts for days. She survives deep in a cave but emerges days later to find the world transformed, with blackened trees, an ash-filled sky, and no living creatures stirring - except for her. So begins her desperate journey to find water and food and other survivors...and the answer to the mystery of what happened.

When their last outgoing flight is cancelled, Ben finds a charter plane that can take him around the storm and drop him in Denver to catch a connection. And when the pilot says the single-engine prop plane can fit one more, if barely, Ben offers the seat to Ashley, knowing that she needs to get home just as urgently. And then the unthinkable happens. The pilot has a heart attack, and the plane crashes into one of the largest stretches of harsh and remote land in the United States.

On January 14, 2015, Tommy Caldwell, along with his partner, Kevin Jorgeson, summited what is widely regarded as the hardest climb in history - Yosemite’s nearly vertical 3,000-foot Dawn Wall, after 19 days on the route. This engrossing memoir chronicles the journey of a boy with a fanatical mountain-guide father who was determined to instill toughness in his son to a teen whose obsessive nature drove him to the top of the sport-climbing circuit.

Fifteen-year-old Benny Imura lives in a world infested with zombies where, when a kid turns 15, he must get a job to continue receiving food rations. Benny has no interest in the family business of zombie killing, but figures he doesn’t have much of a choice. He’s tried out a bunch of other jobs, and hasn’t found anything he likes. But as Benny starts training with his brother, he learns things about being human that he never expected.

Bobby Pendragon is a seemingly normal 14-year-old boy. He has a family, a home, and even Marley, his beloved dog. But there is something very special about Bobby: he is going to save the world.

And not just Earth as we know it. Bobby is slowly starting to realize that life in the cosmos isn't quite what he thought it was. And before he can object, he is swept off to an alternate dimension known as Denduron, a territory inhabited by strange beings, ruled by a magical tyrant, and plagued by dangerous revolution.

For the past four years, Rick Walker has been shuffled between foster care and group homes. At 14, he’s a kid nobody wants or cares about. Now he’s headed for Blue Canyon Detention Center. For Rick, life is a maze full of dead ends. But when he is threatened at Blue Canyon and runs away, Rick finds himself in a real maze - the enormous rocky expanse of Canyonlands National Park in Utah. There, Rick meets a biologist who has devoted his life to reintroducing the condor to its natural habitat. As Rick joins him to protect the giant birds, the teenager will begin to see choices instead of dead ends.

Something evil is at work in Hyde River, an isolated mining town in the mountains of the Pacific Northwest. Under the cover of darkness, a predator strikes without warning—taking life in the most chilling and savage fashion. The community of Hyde River watches in terror as residents suddenly vanish. Yet, the more locals are pressed for information, the more they close ranks, sworn to secrecy by their forefathers’ hidden sins. Only when Hyde River’s secrets are exposed is the true extent of the danger fully revealed.

Fifteen-year-old Jessie is angry with her father for sending her on an outdoor survival program for troubled teens. Confused about her life back home and unsure of herself, she is drawn to the powerful personality of a teammate, the charismatic Troy. At their first opportunity to rebel, she and her six companions "borrow" their instructor's gear and attempt the dangerous Colorado River through the Grand Canyon on their own.

Arlo Finch is a newcomer to Pine Mountain, Colorado, a tiny town of mystery and magic, but he has already attracted the attention of dark and ancient forces. At first he thinks these increasingly strange and frightening occurrences are just part of being in Rangers, the mountain scouting troop where he learns how to harness the wild magic seeping in from the mysterious Long Woods. But soon Arlo finds himself at the center of a dangerous adventure, where he faces obstacles that test the foundations of the Ranger's Vow: Loyalty, Bravery, Kindness, and Truth.

Two boys and an old man survive a harrowing waterfall accident to find themselves stranded in the remote Mackenzie Mountains of northern Canada. Fifteen-year-olds Gabe and Raymond have the same birthday, but come from vastly different cultures. Gabe was raised by his grandparents in the Texas hill country, and Raymond is from a native village in the Northwest Territories. The old man is Johnny Raven, Raymond’s great uncle. Luckily for the boys, he’s a traditional Dihnay Indian who knows the old ways of winter survival.

Brady Steele watches in awe as a fireball comes crashing through the roof of his house. Brady immediately calls up his cousin, Quinn. They both love all things extreme, and this is the most extreme thing ever! Fred, as Brady names his space rock, turns out to be one of the rarest meteorites ever found. Brady is discovering he's able to do strange and wonderful feats that shouldn't be possible.But he's developing some frightening symptoms. Could he be infected with long-dormant microbes from space?

When a plane crash-lands in the Arctic, eight young survivors step from the wreckage expecting to see nothing but ice and snow. Instead they find themselves lost in a strange jungle with no way to get home and little hope of rescue. Food is running out. Water is scarce. And the jungle is full of threats unlike anything the survivors have ever seen before - from razor-beaked shredder birds to carnivorous vines and much, much worse.