In New York Times best-selling author Dan Gutman's all-new series, which blends fascinating real history with an action-packed and hilarious adventure, four very different kids are picked by a mysterious billionaire to travel through time and photograph some of history's most important events. This time the four friends are headed to 1863 to catch Abraham Lincoln delivering his famous Gettysburg Address.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Stacy was raised by wolves. She’s never needed humans to survive, and from what she sees of humans, they’re dangerous and unpredictable. For as long as she can remember, Stacy’s pack of six powerful, playful wolves - Addison, Basil, Everest, Noah, Tucker, and Wink - have been her only family. Together, Stacy’s pack patrols the forest to keep other animals safe, relying on her wits and each wolf’s unique abilities to accomplish risky rescue missions. But as the forest changes and new dangers begin lurking, are Stacy and the wolves prepared for the perils that await them?

Eli Frieden lives in the most perfect town in the world: Serenity, New Mexico. In this idyllic place, every lawn is perfectly manicured, and everyone has a pool and a tree house. Honesty and integrity are valued above all else. The 30 kids who live there never lie--they know it's a short leap from that to the awful problems of other, less fortunate places. Then one day Eli bikes to the edge of the city limits, and something so crazy and unexpected happens, it changes everything.

After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet. In 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her wealth and influence, so she hid it before committing suicide. 

In the final book of the Wizard for Hire trilogy, Ozzy and his friend (and Rin’s daughter), Sigi, are in danger. They are still being hunted by Ray, the power-mad villain who will stop at nothing to find the formula to the mind-controlling discipline serum - one that Ozzy’s parents created and injected into him. Knowing the dangers that lie ahead, Rin introduces Ozzy to four more friends who also claim magical, wizard-like abilities. Again, Ozzy has no reason to believe that magic exists or that Rin’s eccentric friends can help.

Twelve year old Jake's middle school is about to be shut down - unless Jake and his friends can figure out how to save it. When Jake spies a bowl of jellybeans at the hotel where his mom works, he eats them. But those weren't just jellybeans. One of the scientists at his mom's conference is developing the world's first ingestible information pills. And that's what Jake ate.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

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.

Twelve-year-old Gordy Stitser is one of the few people who knows the truth about the secret society of potion masters, because not only is Gordy's mom on the Board of Ruling Elixirists Worldwide (BREW), but she has also been training Gordy in the art of potion-making. Gordy is a natural, and every day he sneaks down to the basement lab to invent new potions using exotic ingredients like fire ant eggs, porcupine quills, and Bosnian tickling juice. One afternoon, Gordy receives a mysterious package containing an extremely rare potion known as "The Eternity Elixir."

After a botched escape plan from her boarding school, Abigail is stunned to discover the school is actually a cover for an elite spy ring called The Center, along with being training grounds for future spies. Even more shocking? Abigail's mother is a top agent for The Center and she has gone MIA, with valuable information that many people would like to have - at any cost. Along with a former nemesis and charming boy from her grade, Abigail goes through a crash course in Spy Training 101, often with hilarious - and sometimes painful - results.  

What would happen if you discovered that your family was one of the most powerful in human history? What if you were told that the source of the family's power was hidden around the world, in the form of 39 Clues? What if you were given a choice - take a million dollars and walk away...or get the first Clue? If you're Amy and Dan Cahill, you take the Clue - and begin a very dangerous race.

The first volume of this best-selling unofficial Minecraft adventure series begins with Runt, our 12-year-old hero, about to choose his future vocation at the Minecraftia school. His options are less than thrilling: farmer, crafter, miner. But what this noob really wants is to be a warrior like his hero, Steve. So when he learns that the five best students in school that year will get the chance to start warrior training, it’s ON.  

Cameron Boxer, king of the slackers, has found something worth his time. By playing video games online in front of an audience, he can find both fame and fortune - especially with Elvis (a beaver who seems to love video games as much as Cam) at his side. The only problem? Things keep getting in Cam's way. Like school. And the club he accidentally started. And the misguided people in his life who don't think beavers should be playing video games. 

Clark is the definition of man on every planet. Whatever are the hurdles, he conquers those hurdles. He does things in the name of love, defeating any kind of vengeance. In the different universes, Dark Storm is the name people hesitate to utter or even imagine that name in their mind. He is that dark matter that people don’t want their fate to unravel their path with. He is from that dimension of darkness where light is shunned.