

Tom and Sue like to play in the sand. They make castles and dig holes. One day, they find a big shell in the sand. They think there is a treasure inside.
"Let's open it!" Tom says. He tries to pull the shell apart, but it is too hard. He twists and twists, but nothing happens.
"Let me try!" Sue says. She takes the shell from Tom and twists it too. She twists so hard that the shell breaks in half. But there is no treasure inside. There is only a shrimp.
"Yuck!" Tom says. He looks at the shrimp. It is pink and slimy. It does not move. It is dead.
"Maybe it was the treasure for someone else," Sue says. She feels sorry for the shrimp. She puts the shell back together and buries it in the sand.
"Let's make a new castle," Tom says. He forgets about the shrimp. He and Sue play in the sand until the sun goes down. They do not know that the shrimp was the dinner for a hungry crab. The crab was hiding under the sand, waiting for the right moment. But the crab was too late. The shrimp was gone. The crab was sad and hungry. It had to find another meal.
