Tail of Emily Windsnap, The

Even though 12-year-old Emily Windsnap lives on a houseboat, she has never learned to swim. Emily begs for swimming lessons, but is consistently told no. Finally, Emily persuades her mother to let her take a swim class at school. When Emily steps into the water, she has the shock of her life – her legs turn into a tail and she is transformed into a mermaid!
The narrative combines elements of mystery, suspense, adventure, and action, as Emily tries to discover the nature of her true identity.