Discovery in Great Sand Dunes National Park: A Mystery Adventure (National Park Mystery Series)

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(as of Jan 09, 2026 04:13:55 UTC – Details)

Riddles – Lost Landmarks – Hidden Clues – Real Locations

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 Mystery Series
Before Jake’s grandfather died, he was on the trail of a centuries-old mystery. And he has entrusted that mystery to Jake, leaving behind a set of hidden codes, riddles, maps, and other clues that lead Jake and his friends on a scavenger hunt into the most wild and rugged wilderness of the national parks.

The mystery unfolds as Jake, Amber, and Wes learn about survival skills, natural history, integrity, character, and friendship.
Along the way, they discover they are not the only ones on this quest. An elusive shadow group is close on their heels.
Illustrated by the author, this page-turning adventure is designed to capture the imagination of even the most reluctant of young readers. Parents looking for a delightful read-aloud adventure will find it hard to put down. (Word of Caution: readers frequently note that this is a “Please read just one more chapter” experience).

If your family loves the enchanted lands of our national parks, this series will take you to hidden places and into breathtaking landscapes. If you enjoy movies like National Treasure and Uncharted, or mystery adventures like the Hardy Boys and Gary Paulsen’s survival story, Hatchet, you’ll love this second installment of the National Park Mystery Series. Start this epic adventure on your Kindle app, or begin the journey with a paperback copy.

From the Publisher

Follow Along with the Maps!

“I’m 13, and I love these books so much! Some of the problems are ones I can relate to, and I just can’t put these books down!”

– Liv, Student, 13

A Read-Aloud Adventure for the Entire Family

“Reading with my third-grade class, and they never want to stop listening. Their imagination is captivated, and it makes them crave adventure!”

– Sarah Gross, Educator

History Meets Mystery in the Wilderness

“I love how the characters have to do all these adventures and solve mysteries, and I like to try to solve them before they do. My favorite part of the books is EVERYTHING!”

– Patrick, Student, age 9

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Customer Reviews

4.7 out of 5 stars 2,094

4.8 out of 5 stars 943

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4.8 out of 5 stars 712

4.8 out of 5 stars 716

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Book | Movie Comparison
The Hardy Boys | National Treasure Nancy Drew | Indiana Jones Three Musketeers | Goonies The Sandlot | Sherlock Holmes Hatchet | Treasure Island

Character Growth
Teamwork and trusting others’ skills, working through grief Conflict resolution, honesty, and doing the right thing Dealing with jealousy, learning to name and manage emotions Responding to bullies, working through anger Dealing with fear, anxiety, and panic.

Educational Elements
Wilderness Safety and Survival, Colorado and US History Ecosystems, Water Cycle, Rangers’ Roles and Park Service Grand Canyon History, Fire Safety, Indigenous Culture and History Wayfinding, First Aid, Slot Canyons, Early American History Orienteering, Search and Rescue, Forestry, National Park History

Publisher ‏ : ‎ Aaron Johnson
Publication date ‏ : ‎ September 29, 2022
Language ‏ : ‎ English
Print length ‏ : ‎ 266 pages
ISBN-10 ‏ : ‎ 0989711676
ISBN-13 ‏ : ‎ 978-0989711678
Item Weight ‏ : ‎ 9.9 ounces
Reading age ‏ : ‎ 8 – 11 years, from customers
Dimensions ‏ : ‎ 5.25 x 0.67 x 8 inches
Book 2 of 5 ‏ : ‎ National Park Mystery Series
Best Sellers Rank: #2,603 in Books (See Top 100 in Books) #1 in Children’s American Local History #5 in Children’s Intermediate Readers #13 in Children’s Mystery, Detective, & Spy
Customer Reviews: 4.8 4.8 out of 5 stars (943) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });