"Warning: May cause spontaneous laughter and extreme reading past bedtime." Meet the Wright cousins: five fun-loving, slightly chaotic, and wildly inventive kids who never back down from a challenge… unless it involves spiders. When their grandparents call for help, the cousins expect lemonade and maybe yard work—not vanishing trains, secret passages, and a haunted gold mine. But hey, when real adventure calls, you go for it! Out come the walkie-talkies, marshmallows, and crazy inventions. The Wright cousins must work together to solve century-old clues, outsmart the crooks, and try not to fall into too many holes. (OK, maybe just one hole. Maybe two.) Filled with humor, and more twists than a rope swing over a canyon, this laugh-out-loud adventure will keep readers guessing (and giggling) to the very last page. Think Percy Jackson meets The Hardy Boys — with more laughs and fewer monsters . Parents will love the clean, family-friendly fun of the Treasure of the Lost Mine . Kids will love the laugh-out-loud moments, wild twists, and nonstop action . Reviewers declare The Treasure of the Lost Mine an “Awesome read!” and “My kids give it a quadruple thumbs up!” “These books are hard to put down and have been great for our family!” The award-winning Wright Cousin Adventures are best enjoyed when read in order. Buy books 1, 2, and 3 today! About the Wright Cousin Adventures Series — “Our children--ages 15, 13 and 8--love hearing books by this author.” -- Filled with thrilling action, humor, unexpected plot twists, and wholesome family values , The Wright Cousin Adventures are the perfect choice for readers who enjoy classic adventure mystery stories such as the Hardy Boys, Nancy Drew , and a teenage version of The Boxcar Children. “The books have the humor, witty banter, and page-turning speed of a Percy Jackson novel.” The Wright Cousin Adventures series is perfect for boys and girls ages 8-15, parents, and is enjoyed by grandparents, too! STEM accurate, action-packed, and funny, this family friendly series--with its laugh-out loud moments--will inspire children, teens, and adults to find humor in life, get out into the amazing world around them, and reach out to help others, “We’re the Wright Cousins. We’re here to help!” Get the Wright Cousin Adventures today! "This is my NEW FAVORITE SERIES!" -- Anne R. " Outstanding Kid Series! I normally don't review books on here [Amazon] unless highly impressed! So many children's books today are such a poor excuse for literature - poor plots, undeveloped characters, even poor spelling and use of English. What a delight to find a highly qualified author, Greg Smith and to finally find a series that are uplifting, well written and adventurous!" (Amazon 5-star review by Buzzyflight, Nov. 10, 2020) " Kids favorite book-- I sent my niece and nephew several books for summer reading. This has been the favorite of both kids...Appropriate for all kids, just good fun...Highly recommend."-Consultx " My kids have read the whole series and asking for more!-- My kids are very much into action and adventure books. We have read the entire series together during family reading time. They have loved all of them and now cannot wait for the author to write more. These books are full of tasty little tidbits of true information including some historical references and accurate STEM information applied to situations in the book. I loved these for my kids."-Clint G " Mystery and Fun-- Purchased for my grandson--I found it to be quite a thrilling read--perfect for an almost 11 year old. Full of fun and adventure."-H. W. Longfellow " Great new series (to us)-- Bought for a 7 year old bookworm granddaughter who loves adventure stories and read it in almost one session!"-Reviewer in Canada " Worthwhile books-- Wonderfully written story, my son has devoured all 12 of the books in the series."-Susan " A Great Adventure Story-- My boy loves it. It's a story about airplane, train, tank, skeleton...what else can you ask?"-Olivia Y. " Couldn't put the book down!-- I purchased this book for my eight year old granddaughter. She enjoyed it so much she asked me to purchase the next book in the series, Desert Jeepers!"-KJD When Greg Smith was writing The Treasure of the Lost Mine , he was digging in their gold mine and building a narrow gauge railroad to haul out the rock. He and his family and were also building a log fort, Fort Daniel Boone, named after one of their American frontier ancestors. A lot of their family history was woven into this book. Gregory O. Smith is the author of the 15 book, award-winning Wright Cousin Adventures series, the time travel adventure The Ha t, George Washington, and Me! , the award-winning friendship and wilderness survival adventure Strength of the Mountains, and the exciting, page turning military adventure, Rheebakken 2--Last Stand for Freedom.