When sixth-grade mathematical genius Charlie Lewis is recruited to recover moon rocks taken from NASA's vaults, the Whiz Kids enter a paper airplane contest hosted by the suspect's company in this follow-up to Bringing Down the Mouse. 5 1/2 x 8 5/16.

When Charlie's classmate Anthem mysteriously disappears after bringing a supposed space rock to show-and-tell, the Whiz Kids trace his steps to his eerily empty house, where it becomes clear that Anthem and his father are involved in something much bigger than a lost rock.

Charlie and the Whiz Kids discover a prehistoric mammoth tusk and stumble right into the nefarious clutches of an eccentric billionaire in this hilarious third novel of the Charlie Numbers series. Charlie Numbers and his gang of Whiz Kids—along with a few new allies—are on another mission: this time, to uncover the truth behind the mysterious mammoth tusk they found buried in the Boston Public Gardens. Their hunch? Blake Headstrom, eccentric billionaire, philanthropist, and collector of some renown, has been smuggling mammoth tusks into the city. The only question is: Why? Selling woolly mammoth tusks isn’t illegal…but selling elephant ivory is. And Charlie’s certain Headstrom’s plans are more sinister than they seem. But Headstrom is a powerful man, with powerful connections. If the Whiz Kids want to expose him for the criminal they know he is, they’re going to have to catch him red-handed. Now if only Headstrom’s henchmen weren’t lurking at every turn…

Charlie Lewis goes on a roller coaster ride of risk, math, and gaming in this middle grade novel that parallels the New York Times bestselling Bringing Down the House, which inspired the movie 21 with Kevin Spacey. Charlie Lewis is a nerd. All he’s ever been good at is math—and he’s really good at math. So good that he’s recruited by a group of kids determined to game the system at the biggest theme park in the world—and win the grand prize. Soon Charlie is caught up in the excitement and thrill of using his math skills for awesomeness…but what’s at stake may be more than he’s willing to risk. How far will Charlie go for a chance at the ultimate reward?

From the bestselling author of The Accidental Billionaires and Bringing Down the House, this is the incredible true story of how a college student and two female accomplices stole some of the rarest objects on the planet—moon rocks—from an "impregnable" high-tech vault. But breaking into a highly secure laboratory wasn't easy. Thad Roberts, an intern in a prestigious NASA training program, would have to concoct a meticulous plan to get past security checkpoints, an electronically locked door with cipher security codes, and camera-lined hallways even before he could get his hands on the 600-pound safe. And then how was he supposed to get it out? And what does one do with an item so valuable that it's illegal even to own? With his signature high-velocity style, Mezrich reconstructs the outlandish heist and tells a story of genius, love, and duplicity that reads like a Hollywood thrill ride.

“This rich volume is a national treasure.” —Kirkus Reviews (starred review) “Captivating, informative, and inspiring…Easy to follow and hard to put down.” —School Library Journal (starred review) The inspiring autobiography of NASA mathematician Katherine Johnson, who helped launch Apollo 11. As a young girl, Katherine Johnson showed an exceptional aptitude for math. In school she quickly skipped ahead several grades and was soon studying complex equations with the support of a professor who saw great promise in her. But ability and opportunity did not always go hand in hand. As an African American and a girl growing up in an era of brutal racism and sexism, Katherine faced daily challenges. Still, she lived her life with her father’s words in mind: “You are no better than anyone else, and nobody else is better than you.” In the early 1950s, Katherine was thrilled to join the organization that would become NASA. She worked on many of NASA’s biggest projects including the Apollo 11 mission that landed the first men on the moon. Katherine Johnson’s story was made famous in the bestselling book and Oscar-nominated film Hidden Figures. Now in Reaching for the Moon she tells her own story for the first time, in a lively autobiography that will inspire young readers everywhere.

A Time Magazine 100 Best Fantasy Books of All Time selection!​ A Reader’s Digest Best Children’s Book of All Time​! This stunning fantasy inspired by Chinese folklore is a companion novel to Starry River of the Sky and the New York Times bestselling and National Book Award finalist When the Sea Turned to Silver In the valley of Fruitless mountain, a young girl named Minli lives in a ramshackle hut with her parents. In the evenings, her father regales her with old folktales of the Jade Dragon and the Old Man on the Moon, who knows the answers to all of life's questions. Inspired by these stories, Minli sets off on an extraordinary journey to find the Old Man on the Moon to ask him how she can change her family's fortune. She encounters an assorted cast of characters and magical creatures along the way, including a dragon who accompanies her on her quest for the ultimate answer. Grace Lin, author of the beloved Year of the Dog and Year of the Rat returns with a wondrous story of adventure, faith, and friendship. A fantasy crossed with Chinese folklore, Where the Mountain Meets the Moon is a timeless story reminiscent of The Wizard of Oz and Kelly Barnhill's The Girl Who Drank the Moon. Her beautiful illustrations, printed in full-color, accompany the text throughout. Once again, she has created a charming, engaging book for young readers.