There was a koala in a zoo that got really interested in a broom. It kept hugging the broomstick and trying to climb it. It was such a hilarious sight as it seemed to think the broom was a new kind of tree.
I'm not sure specifically as there could be many different koala bedtime stories. It might be about a koala's day in the eucalyptus forest, like how it finds the best leaves to eat, or perhaps it's a story of a koala family and their interactions at bedtime.
Once upon a time, there was a little koala named Joey. Joey lived in a eucalyptus forest. One day, while looking for the tastiest eucalyptus leaves, Joey got lost. It climbed from tree to tree, feeling a bit scared. But then, it saw a friendly possum. The possum led Joey back to its family. And Joey learned to be more careful when exploring the forest.
One playground horror story could be about a child getting seriously injured on a rusty and broken swing. The swing's chain snapped while the kid was swinging high, and they fell hard, breaking their arm. It was a terrifying experience for both the child and the parents who witnessed it.
Once upon a time, there was a little koala bear named Kylie. Kylie lived in a big eucalyptus tree in the Australian forest. Every night before going to bed, Kylie would look at the stars. One night, as she was about to close her eyes, she saw a shooting star. She made a wish that she could find more delicious eucalyptus leaves the next day. Then, with a contented sigh, she curled up in her cozy tree hollow and fell asleep.
I'm not sure specifically without having read the novel. It could be a crucial plot point, a description of a character's thoughts, or perhaps some important dialogue.