This is a picture from “War of the Worlds”. The book involves Martians from Mars attacking the Earth in giant machines that look like this. Bacteria started to kill the Martians from the moment they went inside of Earth’s atmosphere. They arrived in capsules that were shaped like giant three dimensional ovals. Then they built the machines like the picture above. The military tried to fight them, but the Martians were too strong. In the end, the bacteria killed the Martians.
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