The Mysterious Crystal

An eleven year old boy named Jack came across a chrystal. He didn't know what to do so he went to his best friend Seth. Seth was also eleven but Seth knew alot more about science and history. Seth thought it was a sign but he didnt know what kind of sign or what it meant. Jack went home and when he woke up and went downstairs, his mom was crying because his sister wasn't in her bedroom this morning. Jack thought and thought and finally got it. His sisters disappearance had something to do with the chrystal.......