The Case of the Crumbling Crystals

A science fiction, mystery adventure for the young adult
Trina Trianna considered herself a pretty normal 13-year-old. She loved her parents (most of the time), loved her friends (most of the time), studied hard (some of the time) and dreamed about being an astrologer (absolutely all of the time)!
In her hometown of Alexandria, Egypt, in the Year 2433, life went on pretty much as it had for centuries. Sure, Trina used a hologram projection of herself to "try on" her clothes to find just the right outfit. And she had her very own robot to tutor her in astrology. But, over all, her life was quite unexciting. That is, until Tony, a ghost from Jupiter, came to visit.
Once Tony arrived, things started happening. They discovered a place where the earth seemed to be disintegrating. While trying to uncover the reason, Trina found that she too seemed to be disintegrating. When her mom took her to the doctor, she learned that a very cute - but notoriously stuck up - young aristocrat named Ethan had the same problem she did.

While following the trail of the mystery, Trina, Tony and Ethan met a gigantic crystal that talked, flew a jet helicopter into restricted air space, and got tied up in a cave and left for dead. By using astrology to search for clues, they managed to solve the mystery and earn the gratitude of the entire solar system.