Showing Behind Every Illusion by Christina Harner

When soft-spoken Tatiana turns eighteen, she begins to experience unusual changes. Suddenly, she can read minds, sense emotions and move at a speed that far surpasses anything she's known before. When her physical features begin to change as well, she begins to doubt her humanity. Having no clue where to turn, Tatiana tries desperately to keep her new abilities a secret. But her best friend and brother, Isaac, sees past her illusions and together they explore the significance of her differences and search out the meaning behind them. Amidst tragedy, unimaginable transformations and an unexpected friendship, Tatiana has to learn to reveal the girl hidden behind her illusions and what it means to face the world in order to preserve not only the forest but her very existence.