Böcker av Christa Banks

One month after Shelby and Daniel solved the mystery of The Secret of Morning Star Ranch, the Anderson family go skiing. When they get to the ski lodge, they find out the ski lift is not working. While doing some sleuthing, Shelby and Daniel find out that several things have been tampered with, and someone is trying to close down the ski lodge. Can Shelby and Daniel solve the mystery before they have to leave for home on New Year's Day?

After solving two mysteries in The Mystery of the Secret Room, the Anderson twins go on a cruise with their parents. After getting settled into their new quarters on the ship, Shelby learns from an elderly English woman that one of the dancers on the ship has gone missing. Shelby informs Daniel, and they visit the English woman, who then asks Shelby and Daniel if they would be willing to look for the missing dancer. Can Shelby and Daniel find the missing dancer before the end of the cruise?

A little girl mysteriously disappears from an elementary school playground in Colorado Springs. Sixteen-year-old twins, Shelby and Daniel Anderson, work with the police to try to find the little girl. Will Shelby and Daniel help find the girl before it is too late?

During spring break, Shelby and Daniel Anderson helped the police solve "e;The Case of the Missing Girl."e; Now they are back in school, and the principal calls them into her office. She tells them about a secret passageway she discovered behind a bookshelf in her office. Things are also turning up missing in the school. Will Shelby and Daniel be able to solve both mysteries before the end of the school year?