Youngest - Signs of the Prophecy, #1

When Gwen Vaughan experiences a vision on her twenty-second birthday, she seeks its meaning by following the path imprinted in her mind. She needs to know what the vision means. and whether or not she's going insane. Dylan Kincaid has been protecting Gwen since before her birth. from afar and without her knowledge. He knows who and, more importantly, what she is, but can he impart the knowledge before the forces aligned against her can destroy her? Against all odds, Gwen must discover her destiny and accept the quest laid upon her before birth.
Because she isn't a normal human. She's the youngest Old One, and incredibly powerful. ...if she can stay alive long enough to master her magic.