The fourth book in this great award-winning National Park series
brings yet more of the excitement, adventures, and history we've come to
enjoy...Truly a great story that will teach with enthusiasm. --Story
Monsters Ink
In the fourth book of this award-winning national park series, Tommy
Bubba Jones and his sister, Jenny Hug-a-Bug, uncover amazing facts about
the Grand Canyon while on a mission to solve a park mystery. This is no
ordinary brother and sister duo; they are part of a legendary
time-traveling family with a mission to preserve and protect our
national parks and have developed a reputation for solving mysteries. As
they time-travel back hundreds, thousands, and millions of years, they
not only learn about the past, but also experience it. They encounter
all sorts of wild creatures and plants, meet the people involved in the
establishment of the national park, learn about the Native Americans
that call this land home, and unravel some of the park's secrets.