She showed Iman a book.

She said, “They do not even appear because rhinos run across the ground and scare colours up into the sky.”

“I know why rainbows really appear. Mummy told me and now I’ll tell you.”

Zarah took Iman’s hand and led her to a playground.

“Rainbows appear in the sky because of children like you and me. One day, colours looked down from above and liked what they could see.”