Julián notices three women on the subway dressed up in beautiful gowns that end in fishtails and bright, billowing hair. When he gets home, he starts daydreaming about the magic he has seen and wants to dress up in his own fabulous mermaid costume. Julián sets off to create a tail from a butter-yellow curtain and a headdress from a potted fern. What will Julián’s abuela think of the mess he’s made, or the costume he’s created?