The Little Mermaid meets In the Heights in Debbie Rigaud's magical middle-grade retelling of the beloved story!

It's the hottest summer in Newark, New Jersey's history, and all Rielle wants is to cool off. She's already on the outs with her dad and best friend, and her summer is ruined by summer school—so turning on the long-dormant fire hydrant on her corner isn't going to change things. When the hydrant sprays, it comes on full power...in more ways than one. Rielle's mermaid powers are awakened.

She can use her powers to slip into a magical underwater neighborhood. The mermaid version of her estranged best friend is here, and so are her classmates and neighbors. And they're all happy to see her! It seems like Rielle slipped into an alternative universe where everything is perfect—except for one drawback. Underwater, Rielle can't speak.

Is the world of her dreams worth losing her voice over?