Ella's favourite colour is yellow. It's the colour of the sun, the source of lightness and life. When the sun goes down and darkness sets in, she starts to panic, turning on every lamp in the house and gripping her mother's hand in fear. Yellow totally takes over Ella's waking hours, from the wallpaper in her house to the daffodils on the kitchen table to the clothes she wears, all rendered in a thick, luminous gouache. One night, Ella's mother introduces her to a new type of yellow: the soft, butter-yellow moon of the horizon brings with it glowing fireflies. Against the dark backdrop of the night sky, these yellows get a chance to act as the spotlight. Ella doesn't learn to confront her fears; she learns to approach them with a new perspective. Perhaps that's all six of one and half-dozen of the other, but by the end of the book, she decides to turn off the lamp and fall asleep in the moonlight, looking completely at peace.