Nancy and her friends are eager to do some hiking and rafting while on vacation in Arches National Park in Moab, Utah, but when their tour guide mysteriously disappears, Nancy sets out to investigate.

Agent Kevin Kerney of the Fish and Game Department investigates wildlife smuggling and murder in the Gila wilderness of New Mexico. The probe collides with an FBI undercover operation. By the author of Tularosa.

Jack can't believe what he's hearing. His sister is being held hostage. Whoever snatched Ashley must have been following the Landons as they explored Death Valley National Park. But what do they want with Leesa? When Jack discovers why Leesa is on the run, he is determined to protect her. But how can he do that and save Ashley, too? One thing he knows for sure, failure is not an option. National Geographic supports K-12 educators with ELA Common...

Twelve-year-old Jack and his younger sister visit Mesa Verde National Park, where they delve into the park's history while gradually uncovering the mysterious past of their family's teenage foster child Lucky.

While at St. John National Park in the Virgin Islands for a seminar on coral reefs, the Landons help a wealthy thirteen-year-old to find his birth mother, who he believes is in danger.

While their parents study why wolverines are disappearing from Alaska's Denali National Park, Jack and Ashley are stranded in a remote area with their mysterious new foster brother when a hit man's bullet triggers an avalanche.

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.

Jack, Ashley, and their unreliable new foster sister set out to solve the mystery of why whales are beaching themselves at Acadia National Park. While investigating mysterious strandings of whales in Maine's coastal Acadia National Park, the Landons are joined by 14-year-old Bindy Callister, a temporary ward. When Jack, Ashley, and Bindy find a baby humpback whale stranded in a tidal pool, Bindy suspects who's responsible, but she's too scared to...

To help commemorate the one hundredth anniversary of the National Park Service, #1 New York Times bestselling authors former First Lady Laura Bush and her daughter Jenna Bush Hager have created an exuberant picture book tribute to our national parks and the importance and fun of connecting with nature.