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My uncle Fred used to be a security guard at the Natural History Museum. He really liked his job but one night something very strange happened. It was late and nobody was in the museum. He was walking through the Dinosaur Room when he heard something in the Large Sea Animals Room. He ran there and saw something behind a whale, but it was dark and he couldn't see well. Then, he heard a strange voice say "Fred, I'm here for you!" He ran out of the room and ran all the way to the police station. When they went back to the museum, they found nothing. Was it a monster? A ghost? Or was someone in the museum? It's a mystery. Anyway, my uncle didn't go back to the museum the following day or ever again.

1. Where did Uncle Fred use to work?

3. What did he do when he got out of the room?

2. Where was he when he heard a noise?

4. What did the police find in the museum?