These books are well written and appear to be just the thing to grab the attention of those young people who would do well to read a book versus catching screen time. My wife and I have read these books prior to giving them to my great nephews (12, 11, and 9)

I bought these for my grandson but I am reading them first. The books, stickers and bookmarks are great quality!! I definitely recommend this product!!

We enjoyed the series so much that we bought it for our niece and nephew! They were really excited to jump right in and the bookmarks and stickers made it even more fun. Also- kudos on the turn around time from order to shipping- it went faster than I expected!

My 12 year old son and I love this series! We just ordered the next couple of books and the items included are awesome! Great job!!

Love the series. Me and my now 12 year old so have read them all since he sat 8 yrs. He rereads them, and we plan our bucket list travel through each read!!!

The grandkids love these books!

Exciting premise combined with interesting characters. Stories weave multiple time periods and give both historical information as well as information about the national parks.

My grandson loves these books. His dad was able to show him a picture of their family at one of the locations in the book.

Bought the first book for teenage nephews. After reading the first one… I bought the rest of the books for me! Terrifically enjoyable books! Mr. Johnson is a great writer. Love the settings, attached to the characters. So vivid, real, fun, entertaining. Highly recommend!

Good T-shirt for an active 9+ year old. Graphics were sharp, and the T-shirt material is good.

I ordered the 5 book set. I'm very pleased! The books are made with high-quality materials and the covers are beautiful. The set came with bookmarks and stickers, also high quality! I'm pleased they did not come as a "boxed set' and that I will be able to give a few at a time without it appearing I dismantled a set. I have not yet given them to my grandson, so I can't comment on his impression, but I'm hopeful he will enjoy these stories.

My 5th grader loved these books and was so excited to tell me bits of information about each park.

Amazing purchase

My 10 yo nephew enjoys solving riddles and chasing clues solve a mystery. He's visited the Grand Canyon so is able to immerse himself in the location.

Wonderful books. I'm always looking for books for my grandchildren that are exciting and are good clean fun. These are the books. I finished the first five and am waiting for the sixth. My grandchildren will be getting them next.