Fourteen-year-old A.J. Hull lives on a remote ranch in the beautiful hight desert of Nevada. He's a quiet dependable youth who has never experienced any real trouble in his life. Emily Patten is his perky little first cousin who comes to visit each summer. Every vacation until now has been peaceful and full of fun, but this one's different. The discovery of a letter and map almost 150 years old leads them both into a scary adventure. A huge box canyon that holds some eerie secrets, lost gold, and three tough outlaws all combine to make this a summer they'll remember forever...if they survive it!