This thrilling series roars back to life with the release of Mystery #13, Night of the Black Bear. Something very strange is going on in Great Smoky Mountains National Park. A teenage girl is the latest victim in a growing number of bear attacks. Officials must figure out what's causing the bizarre bear behavior or close the park. Can the Landons help? Soon Jack and Ashley are searching for answers with their new friends Yonah Firekiller, a 16-year-old Cherokee boy, and 14-year-old Merle Chapman, whose family once lived on park land. But a heated argument over ancestral land rights puts the Landon kids in the middle of a clash of cultures. Tensions mount when Merle is caught in a lie—a lie that leads straight to the heart-pounding solution. This breathtaking new adventure features an afterword by a park naturalist on black bear behavior and the problems caused by tourists feeding wildlife. Night of the Black Bear is a fast-paced narrative treat filled with vivid descriptions of the natural, scientific, and cultural phenomena of Great Smoky Mountains National Park; a page-turner that will put this popular National Park high on the vacation wish-list of all young readers. National Geographic supports K-12 educators with ELA Common Core Resources. Visit www.natgeoed.org/commoncore for more information.

While their mother investigates a series of bear attacks in and near Gatlinburg, Tennessee, Jack and Ashley learn about country music and Cherokee people from two new friends, one of whom is keeping a secret.

While their mother investigates a series of bear attacks in and near Gatlinburg, Tennessee, Jack and Ashley learn about country music and Cherokee people from two new friends, one of whom is keeping a secret.

Grizzly cubs are disappearing from Glacier National Park, and the Landon family must figure out why! But for Jack, the real mystery is his sister Ashley's strange behavior. What was she doing alone in the woods so early in the morning? And why did she lie to their parents? Jack's efforts to unravel the truth lead to a pulse-pounding adventure that brings the Landon kids face to face with an enraged grizzly—as Jack and his sister suddenly become the hunted.

The Landon family is Southbound—headed for Florida to investigate a mysterious illness plaguing endangered manatees in Everglades National Park. Jack, Ashley, and their friend Bridger soon find themselves in deadly waters with a seven-foot shark, an injured manatee—and a mystery to solve. Who was the stranger in the speedboat who snatched Jack's camera? And what does he have to do with the manatees? Join the heart-stopping chase through a maze of mangrove islands to find out!

While she studies condors in the Grand Canyon a scientist's life is threatened, and the strange, hostile, teenage computer whiz in her family's foster care might be involved.

The hawkshill sea turtle is disappearing from the waters of the Caribbean, and the Landon's are in Virgin Islands National Park to figure out why.