The Mermaid by Christina Henry

Once there was a mermaid who longed to know of more than her ocean home and her people. One day a fisherman trapped her in his net but couldn’t bear to keep her. But his eyes were lonely and caught her more surely than the net, and so she evoked a magic that allowed her to walk upon the shore. The mermaid, Amelia, became his wife, and they lived on a cliff above the ocean for ever so many years, until one day the fisherman rowed out to sea and did not return.

P. T. Barnum was looking for marvelous attractions for his American Museum, and he’d heard a rumor of a mermaid who lived on a cliff by the sea. He wanted to make his fortune, and an attraction like Amelia was just the ticket.

Amelia agreed to play the mermaid for Barnum, and she believes she can leave any time she likes. But Barnum has never given up a money-making scheme in his life, and he’s determined to hold on to his mermaid.