Canyon Sacrifice brings the rugged western landscape, the mysterious past of the ancient Anasazi Indians, and the Southwest's ongoing cultural fissures vividly to life.** A deadly struggle against murderous kidnappers in Grand Canyon National Park forces archaeologist Chuck Bender to face up to his past as he realizes every parent's worst nightmare: a missing child.

"Graham's intriguing third National Park Mystery takes archaeologist Chuck Bender to the Thorofare region of Yellowstone... The threatening behavior of the park's predators is worrisome enough, and the discovery of a murdered researcher lifts threats to a whole new level. Graham does a fine job detailing the various and competing demands made on national parks by the public, scientists, and bureaucrats."
—PUBLISHERS WEEKLY
"Bears

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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.

"A confluence of thrills, history, and mystery as twisty as the Colorado River." -MICKI BROWNING, author of Shadow Ridge When suspicious deaths befall a whitewater rafting expedition through Cataract Canyon in Canyonlands National Park, archaeologist Chuck Bender and his family recognize evil intent lies behind the tragedies. They must risk their lives and act before the murderer makes an already deadly journey on the Colorado River through Utah's...

The scavenger hunt continues in book two of the bestselling National Park Mystery Series. 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 National Park...

Some of the most visited national parks in the country have a dark side. Aside from crowds of hikers, campers, and general tourists, there's a dark side to many that can be found in the great states of Oregon, Washington and Idaho. From strange disappearances, grisly murders and bone-chilling paranormal hauntings and ghost sightings; these pristine locales have a lot more to offer than just serene hiking trails or camping. In this third installment...

Some of the most visited national parks in the country have a dark side. Aside from crowds of hikers, campers, and general tourists, there's a dark side to these three locations in California, the famous Yosemite, Joshua Tree, and Mount Shasta. From strange disappearances, grisly murders, and bone-chilling paranormal hauntings and ghost sightings, these pristine locales have a lot more to offer than just serene hiking trails or camping. In this second...

Follow the clues to real locations on a quest to solve an ancient mystery. The scavenger hunt takes Jake and his friends, where few people venture to go, into the depths of the Grand Canyon. Jake, Amber, and Wes encounter new dangers and find their friendship tested as they follow the clues Jake's grandfather hid away in the old scrapbook. The stakes are higher, and the history goes deeper as the three kids put their heads together to solve a puzzle...

In this third installment of Claire Kells’s thrilling National Park mystery series, Investigative Services Branch agent Felicity Harland ventures through volcanic wilderness to investigate a murder at a new hike-in lodge at Pinnacles National Park.
When a guest turns up dead at the newly opened Pinnacles Grand Hotel, ISB agent Felicity Harland finds herself summoned to a peculiar scene. A gentle breeze blows in from the balcony window,...

Janelle Ortega and Chuck Bender are drawn deep into a threatening web of hostility and deceit in Saguaro National Park in this page-turner of a mystery. "A winning blend of archaeology and intrigue, Graham's series turns our national parks into places of equal parts beauty, mystery, and danger." -EMILY LITTLEJOHN, author of Lost Lake When Janelle Ortega's cousin from Mexico is found brutally murdered at a remote petroglyph site in Saguaro...