Once at the park, Julia went looking for wildflowers. Robbie followed her, jumping and trying to do cartwheels, which he didn't do very well. When he fell he made a soft thud against the soft grass. It made Julia giggle.
"Look at how fast the clouds are moving," Julia said. They seemed to be galloping across the sky like horses.
"And they're getting pretty dark," sighed Robbie. "It probably means we have to go back."
"We still have some time," Julia said, admiring her flowers. "I don't want to clean my room yet."
Robbie didn't seem to be listening. He was just staring at the sky. Then he stood up and pointed. "Look!"
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