Everyone's excited for the annual harvest charity fair! Well, everyone except Crimson. The fair just happens to fall on her thirteenth birthday--and knowing that she won't be eating the special birthday pie that her mom, Old Mill's most famous baker, had always planned to bake makes Crimson's special day one she'd rather forget than celebrate. Scarlett, set on yanking Crimson out of her birthday boycott, surprises Crimson with a recipe for remembering her mom and celebrating her big day--birthday batter and all! But instead of being happy, Crimson explodes in anger, and Scarlett wonders what went wrong. In the end, they learn that it takes a lot to make the perfect friendship--and that sometimes the most secret of ingredients is the most important!