The beautiful Florida Keys is the setting for love, adventure and a family secret that will affect every creature on earth. When timid misfit Brooke is rescued from drowning by a handsome merman, Adrian, her eyes are opened to a world she didn't know existed.Adrian can't stay away from the human girl he rescued, even though he faces certain death if their relationship is discovered. He is torn between his desire for love and his desire to save his people. The two teens join forces to save both races as illegal pollution threatens to destroy Adrian's people and The Athlanmara are planning to fight back against the human threat. Brooke and Adrian's forbidden relationship will change both worlds, but not without a cost.