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Loula’s three brothers, the Rotten Pirate Triplets, don’t want to play with her. “Brothers,” mutters Loula, “the worst invention in the world.” She decides what she really needs is a sister, one just like her. So naturally, she asks her parents to make one for her. Only, it’s not that easy. Her father explains, “Making a sister is . . . well, it’s like making a cake. You need the right ingredients.” To make a sister, they say, you need a papa and a mama, butterflies in the stomach, a full moon, a candlelit supper, kisses and hugs and chocolate.