Penelope Anne Tench dreams of finding a mate and having a family someday like most females, with or without scales. She has searched for years, but neither love nor happiness have come her way. She’s about to give up on life when she decides to have a bit of fun by playing a joke on an unsuspecting young man—and reveals her true form. Her prank comes back to haunt her when she reports for work at her new job the next morning, is introduced to Peter MacPherson, and they immediately recognize each other from the previous day. He assures her he’ll keep her secret safe, but she is hesitant to trust him at first, as mermaids are warned not to consort with humans. With Peter’s help, over the next few months Penelope begins enjoying being a mermaid again—and develops feelings for Peter. So, she takes a leap of faith and gets into bed with a human. She returns to her home on Colony Island after several years away to introduce her chosen mate to her parents. The two young lovers are determined to face whatever obstacles they may encounter to make a life together.