Em and her friends are all ready to start high school. One of only two African Americans in her class, shy Em just wants to find her niche without making waves. Before freshman year is over she finds herself at the source of a technological tsunami. The unwitting recipient of a mysterious app, Em starts getting text messages from guardian angels. She wants to fit in and tries to keep her gift secret. But the texts keep gettting more serious. When "mom" and "cancer" come up in the same text Em must decide if she can, or even wants, to control such powerful technology.