Emma has been planning her outdoor birthday party for weeks. Then the rain comes pouring down - and so does the fury. Doors slam. Tears fall. Nothing feels fair, and no backup plan will do. Emma is mad, and she wants everyone to know it. But instead of telling Emma to calm down or cheer up, her family and the Big Feelings Squad do something different. They let her feel it. Then they help her move it with stomping, scribbling, jumping, and a mad dance that shakes the grumps right out. And little by little, a soggy outdoor party transforms into something nobody planned, but everyone loves. Mad at the Rainy Day is a warm, energetic story about anger, flexibility, and the surprising magic of Plan B. It shows young readers that big mad feelings are completely normal and that with the right tools and the right squad by your side, even the rainiest day can turn into something worth remembering.¿