Famed inventor Henry “Hank” Witherspoon has gone missing, and it’s up to Jack and his brilliant siblings, Ava and Matt, to find him. At Hank’s ransacked lab, the siblings discover clues to the project he’s been working on—a new way to generate and store electricity, inspired by the electric eels of the Amazon.

The kids travel deep into the Amazon jungle, following a series of clues Hank has left. Relying on genius, cunning, and new technology, the kids overcome strange creatures, a raging river, and some very clever foes to find their friend and protect his big idea.

Like volumes one and two, Lost in the Jungle features a glossary of terms and an experiment kids can do at home or at school.

Whether addressing climate change, the future of our society as a whole, personal success, or stripping away the mystery of fire walking, there are certain strategies that get results: looking at the world with relentless curiosity, being driven by a desire for a better future, and being willing to take the actions needed to make change happen. He shares how he came to create this approach—starting with his Boy Scout training (it turns out that a practical understanding of science and engineering is immensely helpful in a capsizing canoe) and moving through the lessons he learned as a full-time engineer at Boeing, a stand-up comedian, CEO of The Planetary Society, and of course, as Bill Nye The Science Guy.

New York Times bestselling authors Bill Nye the Science Guy and Gregory Mone take middle-grade readers on a scientific adventure in the launch of an exciting new chapter book series, Jack and the Geniuses. The perfect combination to engage and entertain readers, the series features real-world science along with action and a mystery that will leave kids guessing until the end, making these books ideal for STEM education.

In the series opener, Jack and the Geniuses: At The Bottom of The World, readers meet Jack and his foster siblings, Ava and Matt, who are orphans. But they’re not your typical kind of orphans—they’re geniuses. Well, Ava and Matt are, which sometimes makes life difficult for 1twelve-year-old Jack. Ava speaks multiple languages and builds robots for fun, and Matt is into astronomy and a whiz at math. As for Jack, it’s hard to stand out when he’s surrounded by geniuses all the time.

When the kids try to spy on Dr. Hank Witherspoon, one of the world’s leading scientists, they end up working for him in his incredible laboratory. Soon, Hank and the kids travel to Antarctica for a prestigious science competition, but they find that all is not as it seems: A fellow scientist has gone missing, and so has any trace of her research. Could someone be trying to use her findings to win the contest? It’s up to Jack, Ava, and Matt to find the missing scientist and discover who’s behind it all—before it’s too late.

Integrating real science facts with humor and suspense, and featuring an ensemble cast of loveable boy and girl characters, this uniquely engaging series is an irresistible chemical reaction for middle-grade readers. With easy-to-read language presented in a fun, motivating, and accessible way, this series opener is a great book for both inquisitive kids and reluctant readers. The book also includes information about the science discussed and used to solve the mystery, as well as a cool science project about density that kids can do at home or in the classroom.