The Secret Mermaid (one direction)

What happens when Niall Horan dreams about a beautiful girl- not just any girl but a mermaid. He cant get her out of his head and will stop at nothing to find her. What happens when he does find her and is instantly under her spell? What happens when she is just as much under his spell as he is for hers? But the thing is she's evil and she can't control it. And what happens when things beyond their control may possibly ruin their relationship? Read and find out!