It’s Lou’s birthday. At school the day before, Simon overhears her saying that the present that she has always dreamed of is a rainbow-colored-butterfly-unicorn-kitty! Of course they don’ exist but Simon is determined to make one for her with some help from Mom. What a wonderful birthday present to offer Lou! It turns out perfectly, it’s beautiful and boy is she going to be happy! Simon and Mommy take the bus to go to Lou’s birthday party. But Simon is distracted by the old woman sitting next to him and he forgets his precious present in the bus...
