Alien invasion (Imagery)
We experience the stunning, classic trope of science fiction books and movies when the alien spaceships come down to Earth, filling the skies with their majesty and terror.
The end of the world (Imagery)
The terrifying cataclysm of the Earth's end is potent imagery: the juxtaposition of Jan, tiny and alone, with the destruction of the whole planet.
The Overlords (Imagery)
The Overlords themselves are bold images--devils out of Christian lore and myth.
The Children (Imagery)
The disturbing blankness of the Children's faces as they meld into a single entity is striking imagery.