Megan Kerr was fearless. But on the morning of her sixteenth birthday all that changes when a haunting chill creeps over her as something lurking from below watches and waits and challenges everything she thought she once knew. Now Meg must learn to believe in what was once considered myth as she and three others find they are heirs to an unfathomable legacy. Together they'll journey into the deep and uncover a world once forgotten, filled with the mysteries of their ancestors, where merpeople and humans once swam synchronized among the waves. Soon each learns they harbor the secrets that will restore such a union once again. But every crusade has its challenges and such knowledge comes with a price. There are those who seek a claim in their expedition, those with evil intent hiding in the shadows waiting to strike. The four must learn to trust each other as allies in order to prevail. Friendships are tested as a treacherous battle begins. One in which to the victor goes the control of the tides...