"A famed sandstone arch in Utah's Arches National Park collapses and takes a woman atop it to her death, ensnaring archaeologist Chuck Bender and his family in lethal questions of environmental monkeywrenching and political intrigue. As more deaths follow, Chuck and his wife Janelle race to uncover the killer even as they become murder targets themselves."--Publisher description.

Twelve-year-old Jack, his younger sister, and the family's teenage foster child Troy go to Yellowstone National Park, where Jack's mother, a wildlife veterinarian, is investigating the report that wolves reintroduced to the park have killed a dog there.

While camping in Zion National Park, Jake Evans and his friends uncover a new set of cryptic clues hidden in his grandfather's scrapbook. Battling unpredictable weather, unforeseen challenges, and an elusive adversary, the three friends are forced to rely on their problem-solving skills, the power of their growing friendship, and the courage to do the right thing.--Publisher's description.

"After camping in Rocky Mountain National Park, Jake and his friends travel to the Great Sand Dunes in southern Colorado. Exploring the heart of the dunes, they stumble upon something both unexpected and dangerous. Through more twists and turns, Jake's friendships and integrity are tested by choices that will demand smarts and courage. The mystery unfolds as Jake, Amber, and Wes learn about survival skills, natural history, integrity, character, and...

"When Janelle Ortega's cousin from Mexico is found brutally murdered at a remote petroglyph site in Saguaro National Park, she and her husband, archaeologist Chuck Bender, are drawn deep into a threatening web of hostility and deceit stretching south across the US-Mexico border and back in time a thousand years, to when the Hohokam people thrived in the Sonoran Desert. Evoking the stark, cactus-studded beauty of Saguaro National Park in southern Arizona,...

In the riveting second installment of the National Park Mystery Series, archaeologist Chuck Bender finds himself and his young wife and stepdaughters in the crosshairs of an unknown killer when he defends his brother-in-law from false accusations of murder in the brutal slaying of a resort worker in Rocky Mountain National Park.

"Archaeologist Chuck Bender arrives with his family in the beautiful Yosemite Valley to study the 150-year-old murders of a pair of gold prospectors. In the midst of Chuck's work, preparations for the annual Yosemite Slam rock-climbing competition, and a reunion with his old climbing buddies, the trip quickly turns threatening. One climber never shows up, climbing equipment fails, and Chuck and his wife, Janelle Ortega, are suspected in the shocking,...

In a remote corner of Alaska, Investigative Services Bureau agent Felicity Harland squares off against a mysterious cult leader with potentially deadly motives when she joins with her partner, Hux, to investigate the deaths of a young couple in Gates of the Arctic National Park.