Alex & Penny In The Wild West : The brother and sister team of young secret agents explore America's Wild West. Their secret mission takes them to the area's most fascinating historical landmarks and through some of the world's most stunning scenery as they follow in the footsteps of the pioneers along the Oregon Trail. The name of each destination is hidden in a quiz or puzzle that Alex and Penny - and readers - have to solve before they can continue to the next clue. Among the places the twins visit are Bryce Canyon and the Grand Canyon, Arches National Park, Mesa Verde, where they learn about Native American history, and Monument Valley. They pan for gold in the Colorado River, participate in a wild mustang roundup, and learn Native American traditions along the way. An entertaining story combined with spectacular photographs and manga-like illustrations introducing readers to the legendary history of America's frontier.