"She just swam away?"
"Yes," her father said, and Cordelia could tell he missed the mermaid of mountain water.
"Then how did I get here?" she asked, very confused.
"Your egg was laid in her lake, and when the tide was high again, I went looking for your mother. She held you on her back, tiny and green. She told me that you had recently hatched but weren't growing the way you should. Based on your colour, we assumed you need saltwater. I had to say goodbye to your mother one more time. I wanted to see her again, meet her there every tide, but she said she wouldn't come again."