The Mystery of the Unstoppable Cars

What unusual event did Sum experience with his car?

• The car flew into the air.

• The car refused to start.

• The car refused to stop.

• The car changed color.

How did Sum gather information about the moving vehicles?

• He interviewed drivers.

• He hacked into a local radio station.

• He read newspaper articles.

• He visited a library.

What did Sum discover about the cause of the vehicle chaos?

• A new type of fuel.

• A powerful underground magnet.

• A weather phenomenon.

• A computer virus.

What did Sum use to track the magnetic signal?

• A compass.

• A telescope.

• A motion detector.

• A GPS device.

Where did Sum find the ancient machine causing the chaos?

• In a forest.

• In a basement.

• In a mountain cave.

• In a city park.