Martina just had the worst day, ever. She fell in a mud puddle, swallowed a bug, stepped on un grande wad of gum, and ruined her lucky calcetines forever! When she tells her grandmother all about her muy bad day, Abuela has a few ideas for how to handle all the big feelings. Will anything be enough to turn her muy bad day around? With humor, love, and a little bit of music, anyone can turn un día muy malo into a fiesta, because even the worst days...